- Axis naval activity in Australian waters
Australiawas remote from the main battlefronts, there was considerable Axis naval activity in Australian waters during World War II. A total of 54 German and Japanese warships and submarines entered Australian waters between 1940 and 1945 and attacked ships, ports and other targets. Among the best-known attacks are the sinking of HMAS "Sydney" by a German raider in November 1941, the bombing of Darwin by Japanese naval aircraft in February 1942, and the Japanese midget submarine attack on Sydney Harbour in May 1942. In addition, many Allied merchant ships were damaged or sunk off the Australian coast by submarines and mines. Japanese submarines also shelled several Australian ports and submarine-based aircraft flew over several Australian capital cities.
The Axis threat to Australia developed gradually and until 1942 was limited to sporadic attacks by German
armed merchantmen. The level of Axis naval activity peaked in the first half of 1942 when Japanese submarines conducted anti-shipping patrols off Australia's coast, and Japanese naval aviation attacked several towns in northern Australia. The Japanese submarine offensive against Australia was renewed in the first half of 1943 but was broken off as the Allies pushed the Japanese onto the defensive. Few Axis naval vessels operated in Australian waters in 1944 and 1945, and those that did had only a limited impact.
Due to the episodic nature of the Axis attacks and the relatively small number of ships and submarines committed, Germany and Japan were not successful in disrupting Australian shipping. While the Allies were forced to deploy substantial assets to defend shipping in Australian waters, this did not have a significant impact on the Australian war effort or
United States-led operations in the South West Pacific Area.
Australia Station and Australian defences
The definition of "Australian waters" used throughout this article is, broadly speaking, the area which was designated the
Australia Stationprior to the outbreak of war. This vast area consisted of the waters around Australia and eastern New Guinea, and stretching south to Antarctica. From east to west it stretched from 170 degrees east in the Pacific Oceanto 80 degrees east in the Indian Ocean, and from north to south it stretched from the Equatorto the Antarctic. [G. Herman Gill (1957). [http://www.awm.gov.au/histories/chapter.asp?volume=24 "Australia in the War of 1939–1945. Series 2 – Navy. Volume I – Royal Australian Navy, 1939–1942"] . Australian War Memorial, Canberra. Pages 52–53.] While the eastern half of New Guinea was an Australian colonial possession during World War II and fell within the Australia Station, the Japanese operations in these waters formed part of the New Guinea and Solomon Islands Campaigns and were not directed at Australia.
The defence of the Australia Station was the
Royal Australian Navy's main concern throughout the war. [Gill (1957). Page 51.] While RAN ships frequently served outside Australian waters, escort vessels and minesweepers were available to protect shipping in the Australia Station at all times. These escorts were supported by a small number of larger warships, such as cruisers and armed merchant cruisers, for protection against surface raiders. [Alastair Cooper (2001). " [http://www.awm.gov.au/events/conference/2001/cooper.htm Raiders and the Defence of Trade: The Royal Australian Navy in 1941] ". Paper delivered to the Australian War Memorial conference [http://www.awm.gov.au/events/conference/2001/index.htm Remembering 1941] .] While important military shipping movements were escorted from the start of the war, convoys were not instituted in Australian waters until June 1942. The Australian naval authorities did, however, close ports to shipping at various times following real or suspected sightings of enemy warships or mines prior to June 1942.
Royal Australian Air Force(RAAF) was also responsible for the protection of shipping within the Australia Station. [Douglas Gillison (1962) [http://www.awm.gov.au/histories/chapter.asp?volume=26 "Australia in the War of 1939–1945. Series 3 - Air. Volume I – Royal Australian Air Force, 1939–1942".] Australian War Memorial, Canberra. Pages 93–94.] Throughout the war, RAAF aircraft escorted convoys and conducted reconnaissance and anti-submarine patrols from bases around Australia. The main types of aircraft used for maritime patrolwere Avro Ansons, Bristol Beauforts, Consolidated Catalinas and Lockheed Hudsons. Following the outbreak of the Pacific War, RAAF fighter squadrons were also stationed to protect key Australian ports and escorted shipping in areas where air attack was feared.
The Allied naval forces assigned to the Australia Station were considerably increased following Japan's entry into the war and the beginning of the
United States militarybuild-up in Australia. These naval forces were supported by a large increase in the RAAF's maritime patrolforce and the arrival of United States Navypatrol aircraft. Following the initial Japanese submarine attacks, a convoy system was instituted between Australian ports, and by the end of the war the RAAF and RAN had escorted over 1,100 convoys along the Australian coastline. [cite web |url=http://www.navy.gov.au/RAN_in_the_Second_World_War |title=RAN in the Second World War |first=J.H. |last=Straczek |publisher=Royal Australian Navy |accessdate=2008-09-19] As the battlefront moved to the north and attacks in Australian waters became less frequent, the number of ships and aircraft assigned to shipping protection duties within the Australia Station was considerably reduced. [George Odgers (1968) [http://www.awm.gov.au/histories/chapter.asp?volume=27 "Australia in the War of 1939–1945. Series 3 - Air. Volume II – Air War Against Japan, 1943–1945".] Australian War Memorial, Canberra. Page 349.]
In addition to the air and naval forces assigned to protect shipping in Australian waters, fixed defences were constructed to protect the major Australian ports. The
Australian Armywas responsible for developing and manning coastal defences to protect ports from attacks by enemy surface raiders. These defences commonly consisted of a number of fixed guns defended by anti-aircraft guns and infantry. [Albert Palazzo (2001). "The Australian Army : A History of its Organisation 1901–2001". Oxford University Press, Melbourne, 2001. Page 136.] The Army's coastal defences were considerably expanded as the threat to Australia increased between 1940 and 1942, and reached their peak strength in 1944. [Palazzo (2001). Pages 155–157.] The Royal Australian Navy was responsible for developing and manning harbour defences in Australia's main ports. [David Stevens (2005), [http://www.navy.gov.au/Publication:Papers_in_Australian_Maritime_Affairs_No._15 RAN Papers in Australian Maritime Affairs No. 15 "A Critical Vulnerability: The impact of the submarine threat on Australia's maritime defence 1915 - 1954"] . Seapower Centre - Australia, Canberra. Pages 95–97.] These defences consisted of fixed anti- submarine booms and mines supported by small patrol craft, and were also greatly expanded as the threat to Australia increased. [Stevens (2005). Page 173.] The RAN also laid defensive minefields in Australian waters from August 1941. [Gill (1957). Page 420.]
While the naval and air forces available for the protection of shipping in Australian waters were never adequate to defeat a heavy or coordinated attack, they proved sufficient to mount defensive patrols against the sporadic and generally cautious attacks mounted by the Axis navies during the war. [Stevens (2005). Pages 330–332.]
German surface raiders in 1940
While German surface raiders operated in the western
Indian Oceanin 1939 and early 1940, they did not enter Australian waters until the second half of 1940. The first Axis ships in Australian waters were the unarmed Italian ocean liners "Remo" and "Romolo", which were in Australian waters when Fascist Italy entered the war on 11 June 1940, Eastern Australian Time. While "Remo" was docked at Fremantle and was easily captured, "Romolo" proved harder to catch, as she had left Brisbaneon 5 June bound for Italy. Following an air and sea search, "Romolo" was intercepted by HMAS "Manoora" near Nauruon 12 June and was scuttled by her captain to avoid capture. [Gill (1957). Pages 118–124.]
The German surface raider HSK "Orion" was the first Axis warship to operate in Australian waters during World War II. After operating off the northern tip of
New Zealandand the South Pacific, "Orion" entered Australian waters in the Coral Seain August 1940 and closed to within convert|120|nmi|km|lk=on north-east of Brisbane on 11 August. [Gill (1957). Page 261.] Following this, "Orion" headed east and operated off New Caledoniabefore proceeding south into the Tasman Sea, sinking the merchant ship "Notou" south-west of Noumeaon 16 August and the British merchant ship "Turakina" in the Tasman Sea four days later. "Orion" sailed south-west after sinking "Turakina", passing south of Tasmania, and operated without success in the Great Australian Bightin early September. While "Orion" laid four dummy mines off Albany, Western Australiaon 2 September, she departed to the south-west after being spotted by an Australian aircraft the next day. After unsuccessfully patrolling in the Southern Ocean, "Orion" sailed for the Marshall Islandsto refuel, arriving there on 10 October. [Gill (1957). Page 262.]
HSK "Pinguin" was the next raider to enter Australian waters. "Pinguin" entered the
Indian Oceanfrom the South Atlanticin August 1940 and arrived off Western Australiain October. "Pinguin" captured the Norwegian 8,998 ton tanker "Storstad" [Warsailors.com: [http://www.warsailors.com/raidervictims/pinguin.html#storstad M/T "Storstad"] ] off North West Capeon 7 October and proceeded east with the captured ship. "Pinguin" laid mines between Sydneyand Newcastle on 28 October, and "Storstad" laid mines off the Victorian coast on the nights of 29–31 October. "Pinguin" also laid further mines off Adelaidein early November. The two ships then sailed west for the Indian Ocean. "Pinguin" and "Storstad" were not detected during their operations off Australia's eastern and southern coasts, and succeeded in sinking three ships. Mines laid by "Storstad" sank two ships off Wilson's Promontoryin early November, and the mines laid off Sydney by "Pinguin" sank one ship and a further merchant ship was damaged after striking a mine off Adelaide. "Pinguin" added to her tally of successes in Australian waters by sinking three merchant ships in the Indian Ocean during November. [Gill (1957). Pages 270–275.]
On 7 December 1940 the German raiders "Orion" and "Komet" arrived off the Australian protectorate of
Nauru. During the next 48 hours the two ships sank four merchant ships off the undefended island. [Gill (1957). Pages 276–279.] Heavily loaded with survivors from their victims, the raiders departed for Emirau Islandwhere they unloaded their prisoners. After an unsuccessful attempt to lay mines off Rabaulon 24 December, "Komet" made a second attack on Nauru on 27 December and shelled the island's phosphateplant and dock facilities. [Gill (1957). Page 281.] This attack was the last Axis naval attack in Australian waters until November 1941.Gill (1957). Page 410.]
German surface raiders in 1941
Following the raids on Nauru, "Komet" and "Orion" sailed for the Indian Ocean, passing through the Southern Ocean well to the south of Australia in February and March 1941 respectively. "Komet" re-entered the Australia station in April en-route to New Zealand, and HSK "Atlantis" sailed east through the southern extreme of the Australia Station in August. [Gill (1957). Pages 446–447.] Until November, the only casualties from Axis ships on the Australia Station were caused by mines laid by "Pinguin" in 1940. The small trawler "Millimumul" was sunk with the loss of seven lives after striking a mine off the
New South Walescoast on 26 March 1941, and two ratings from a Rendering Mines Safe party were killed while attempting to defuse a mine which had washed ashore in South Australiaon 14 July.
On 19 November 1941, the Australian
light cruiserHMAS "Sydney" — which had been highly successful in the Battle of the Mediterranean— encountered the disguised German raider HSK "Kormoran", approximately 240 km (150 mi) south west of Carnarvon, Western Australia. "Sydney" intercepted "Kormoran" and demanded that she prove her assumed identity as the Dutch freighter "Straat Malakka". During the interception, "Sydney" 'scaptain brought his ship dangerously close to "Kormoran". As a result, when "Kormoran" was unable to prove her identity and avoid a battle, she had little hope of surviving, the raider was able to use all her weaponry against "Sydney". In the resulting battle "Kormoran" and "Sydney" were both crippled, with "Sydney" sinking with the loss of all her 645 crew and 78 of "Kormoran"'s crew being either killed in the battle or dying before they could be rescued by passing ships. [" [http://www.awm.gov.au/Encyclopedia/hmas_sydney/action.htm The action between HMAS Sydney and the auxiliary cruiser Kormoran, 19 November 1941] ", Australian War Memorial, accessed 12 June 2006]
"Kormoran" was the only Axis ship to conduct attacks in Australian waters during 1941 and the last Axis surface raider to enter Australian waters until 1943. There is no evidence to support claims that a Japanese submarine participated in the sinking of HMAS "Sydney". [Tom Frame (1993). "HMAS Sydney. Loss and Controversy". Hodder & Stoughton, Sydney. Page 177.] The only German ship to enter the Australia Station during 1942 was the
blockade runnerand supply ship "Ramses", which was sunk by HMAS "Adelaide" and HNLMS "Jacob van Heemskerk" on 26 November, shortly after "Ramses" left Batavia bound for France. All of "Ramses"' crew survived the sinking and were taken prisoner. [Gill (1968). Pages 197–198.]
The naval threat to Australia increased dramatically following the outbreak of war in the Pacific. During the first half of 1942 the Japanese mounted a sustained campaign in Australian waters, with Japanese submarines attacking shipping and
aircraft carriers conducting a devastating attack on the strategic port of Darwin. In response to these attacks the Allies increased the resources allocated to protecting shipping in Australian waters.Stevens (2005). Page 330.]
Early Japanese submarine patrols (January-March 1942)
The first Japanese submarines to enter Australian waters were "I-121", "I-122", "I-123" and "I-124", from the Imperial Japanese Navy's (IJN's) Submarine Squadron 6. Acting in support of the Japanese offensive in the
Netherlands East Indiesthese boats laid minefields in the approaches to Darwin and the Torres Straitbetween 12 and 18 January 1942. These mines did not sink or damage any Allied ships. [Stevens (2005). Page 183.]
After completing their mine laying missions the four Japanese boats took station off Darwin to provide the Japanese fleet with warning of Allied naval movements. On 20 January 1942 the Australian
Bathurst class corvettes HMAS "Deloraine", HMAS "Katoomba" and HMAS "Lithgow" sank "I-124" near Darwin. This was the only full-sized submarine sunk by the Royal Australian Navyin Australian waters during World War II. [Stevens (2005). Pages 183–184. The only other Axis submarines sunk in Australian waters were two of the three midget submarines which entered Sydney Harbour in May 1942.]
Following the conquest of the western Pacific the Japanese mounted a number of reconnaissance patrols into Australian waters. Three submarines ("I-1", "I-2" and "I-3") operated off
Western Australiain March 1942, sinking the merchant ships "Parigi" and "Siantar" on 1 and 3 March respectively. In addition, "I-25" conducted a reconnaissance patrol down the Australian east coast in February and March. During this patrol Nobuo Fujitafrom the "I-25" flew a Yokosuka E14Y floatplane over Sydney(17 February), Melbourne(26 February) and Hobart(1 March). [Stevens (2005). Pages 185–186.] Following these reconnaissances, "I-25" sailed for New Zealand and conducted overflights of Wellingtonand Aucklandon 8 March and 13 March respectively. [Sydney David Waters (1956), [http://www.nzetc.org/tm/scholarly/tei-WH2Navy.html "The Royal New Zealand Navy"] . Historical Publications Branch, Wellington. Pages 214–215.]
Japanese naval aviation attacks (February 1942–November 1943)
The bombing of Darwin on 19 February 1942, was the heaviest single attack mounted by the
Imperial Japanese Navyagainst mainland Australia. On 19 February four Japanese aircraft carriers ("Akagi", "Kaga", "Hiryū" and "Sōryū") launched a total of 188 aircraft from a position in the Timor Sea. The four carriers were escorted by four cruisers and nine destroyers. [Tom Lewis (2003). "A War at Home. A Comprehensive guide to the first Japanese attacks on Darwin". Tall Stories, Darwin. Page 16.] These 188 naval aircraft inflicted heavy damage on Darwin and sank nine ships. A raid conducted by 54 land based bombers later the same day resulted in further damage to the town and RAAF Base Darwinand the destruction of 20 Allied military aircraft. Allied casualties were 251 killed and between 300 and 400 wounded, the majority of whom were non-Australian Allied sailors. Only four Japanese aircraft were confirmed to have been destroyed by Darwin's defenders. [David Jenkins (1992), "Battle Surface! Japan's Submarine War Against Australia 1942–44". Random House Australia, Sydney. Pages 118–120 and Lewis (2003). Pages 63–71.] The four Japanese aircraft carriers involved in the attack on Darwin were sunk during the Battle of Midwayin June 1942.
The bombing of Darwin was the first of many Japanese naval aviation attacks against targets in Australia. The three aircraft carriers ("Shōhō", "Shōkaku" and "Zuikaku") which escorted the invasion force dispatched against
Port Moresbyin May 1942 had the secondary role of attacking Allied bases in northern Queensland once Port Moresby was secured. [ Samuel Eliot Morison(1949 (2001 reprint)). "Coral Sea, Midway and Submarine Actions, May 1942–August 1942", Volume 4 of History of United States Naval Operations in World War II. University of Illinois Press, Champaign. Pages 12–13.] These attacks did not occur, however, as the landings at Port Moresby were cancelled when the Japanese carrier force was mauled in the Battle of the Coral Sea.
Japanese aircraft made almost 100 raids, most of them small, against
northern Australiaduring 1942 and 1943. Land-based IJN aircraft took part in many of the 63 raids on Darwin which took place after the initial attack. The town of Broome, Western Australiaexperienced a devastating attack by IJN fighter planes on March 3, 1942, in which at least 88 people were killed. Long-range seaplanesoperating from bases in the Solomon Islandsmade a number of small attacks on towns in Queensland. [Jenkins (1992). Pages 261–262.]
Japanese naval aircraft operating from land bases also harassed coastal shipping in Australia's northern waters during 1942 and 1943. On 15 December 1942 four sailors were killed when the merchant ship "Period" was attacked off
Cape Wessel. The small general purpose vessel HMAS "Patricia Cam" was sunk by a Japanese naval floatplanenear the Wessel Islandson 22 January 1943 with the loss of nine sailors and civilians. Another civilian sailor was killed when the merchant ship "Islander" was attacked by a floatplane during May 1943. [Gill (1968). Pages 264–266.]
Attacks on Sydney and Newcastle (May-June 1942)
In March 1942, the Japanese military adopted a strategy of isolating Australia from the
United Statesby capturing Port Moresbyin New Guinea, the Solomon Islands, Fiji, Samoaand New Caledonia. [David Horner (1993). 'Defending Australia in 1942' in "War and Society", Volume 11, Number 1, May 1993. Pages 4–5.] This plan was frustrated by the Japanese defeat in the Battle of the Coral Seaand was postponed indefinitely after the Battle of Midway. [Horner (1993). Page 10.] Following the defeat of the Japanese surface fleet, the IJN submarines were deployed to disrupt Allied supply lines by attacking shipping off the Australian east coast.
On 27 April 1942, the submarines "I-21" and "I-29" left the major Japanese naval base at Truk Lagoon in the Japanese territory of the
Caroline Islandsto conduct reconnaissance patrols of Allied ports in the South Pacific. The goal of these patrols was to find a suitable target for the force of midget submarines, designated the Eastern Detachment of the Second Special Attack Flotilla, which was available in the Pacific. [Jenkins (1992). Page 163.] "I-29" entered Australian waters in May and made an unsuccessful attack on the neutral Soviet freighter "Wellen" off Newcastle on 16 May. "I-29's" floatplane overflew Sydney on 23 May 1942, finding a large number of major Allied warships in Sydney Harbour. [Stevens (2005). Pages 191–192.] "I-21" reconnoitred Suva, Fijiand Auckland, New Zealand in late May but did not find worthwhile concentrations of shipping in either port. [Jenkins (1992). Page 165.]
On 18 May 1942, the Eastern Detachment of the Second Special Attack Flotilla left Truk Lagoon under the command of
CaptainHankyu Sasaki. Sasaki's force comprised "I-22", "I-24" and "I-27". Each submarine was carrying a midget submarine. [Jenkins (1992). Pages 163–164.] After the intelligence gathered by "I-21" and "I-29" was assessed, the three submarines were ordered on 24 May to attack Sydney. [Jenkins (1992). Page 171.] The three submarines of the Eastern Detachment rendezvoused with "I-21" and "I-29" 56 km (35 mi) off Sydney on 29 May. [Jenkins (1992). Pages 174–175.] In the early hours of 30 May, "I-21"'s floatplane conducted a reconnaissance flight over Sydney Harbour that confirmed the concentration of Allied shipping sighted by "I-29's" floatplane was still present and was a worthwhile target for a midget submarine raid. [Jenkins (1992). Pages 185–193.]
On the night of 31 May 1942, three midget submarines were launched from the Japanese force outside the
Sydney Heads. Although two of the submarines (Midget No. 22 and Midget A, also known as Midget 24) successfully penetrated the incomplete Sydney Harbour defences, only Midget A actually attacked Allied shipping in the harbour, firing two torpedoes at the United States heavy cruiserUSS "Chicago". These torpedoes missed "Chicago" but sank the depot shipHMAS "Kuttabul", killing 21 seamen on board, and seriously damaged the Dutch submarine "K IX". All of the Japanese midget submarines were lost during this operation (Midget No. 22 and Midget No. 27 were destroyed by the Australian defenders and Midget A was scuttled by her crew after leaving the Harbour). [Robert Nichols 'The Night the War Came to Sydney' in [http://www.awm.gov.au/wartime/index.asp "Wartime"] Issue 33, 2006. Pages 26–29]
Following this raid, the Japanese submarine force operated off Sydney and Newcastle, sinking the coaster "Iron Chieftain" off Sydney on 3 June. On the night of 8 June, "I-24" conducted a bombardment of the eastern suburbs of Sydney and "I-21" bombarded Newcastle.
Fort Scratchleyat Newcastle returned fire, but did not score any hits on "I-21". While these bombardments did not cause any casualties or serious damage, the bombardments generated concern over further attacks against the east coast.Stevens (2005). Page 195.] Following the attacks on shipping in the Sydney region, the Royal Australian Navy instituted convoys between Brisbane and Adelaide. All ships of over 1200 tons and with speeds of less than convert|12|kn|km/h were required to sail in convoy when travelling between cities on the east coast. The Japanese submarine force left Australian waters in late June 1942 having sunk a further two merchant ships. [G. Herman Gill (1968). [http://www.awm.gov.au/histories/chapter.asp?volume=25 "Australia in the War of 1939–1945. Series 2 – Navy. Volume II – Royal Australian Navy, 1942–1945"] . Australian War Memorial, Canberra. Pages 77–78.] The small number of sinkings achieved by the five Japanese submarines sent against the Australian east coast in May and June did not justify the commitment of so many submarines. [Jenkins (1992). Page 291.]
Further Japanese submarine patrols (July-August 1942)
The Australian authorities enjoyed only a brief break in the submarine threat. In July 1942 a division of three submarines ("I-11", "I-174" and "I-175") from Japanese Submarine Squadron 3 commenced operations off the East Coast. These three submarines sunk five ships (including a small fishing trawler) and damaged several others during July and August. In addition, "I-32" conducted a patrol off the southern coast of Australia while en-route from
New Caledoniato Penang, though the submarine was not successful in sinking any ships in this area. Following the withdrawal of this force in August no further submarine attacks were mounted against Australia until January 1943. [Stevens (2005). Page 201.]
While Japanese submarines sank 17 ships in Australian waters in 1942 (14 of which were near the Australian coast) the submarine offensive did not have a serious impact on the Allied war effort in the South West Pacific or the Australian economy. Nevertheless, by forcing ships sailing along the east coast to travel in convoy the Japanese submarines were successful in reducing the efficiency of Australian coastal shipping. This lower efficiency translated into between 7.5% and 22% less tonnage being transported between Australian ports each month (no accurate figures are available and the estimated figure varied between months). [Stevens (2005). Pages 206–207.] These convoys were effective, however, with no ship travelling as part of a convoy being sunk in Australian waters during 1942. [Stevens (2005). Page 205.]
Japanese submarines returned to Australian waters in January 1943 and conducted a campaign against Australian shipping during the first half of the year. The IJN also conducted a diversionary bombardment of Port Gregory, a small
West Australian town.
East coast submarine patrols (January-June 1943)
Japanese submarine operations against Australia in 1943 began when "I-10" and "I-21" sailed from Rabaul on 7 January to reconnoitre Allied forces around Nouméa and Sydney respectively. "I-21" arrived off the coast of New South Wales just over a week later. "I-21" operated off the east coast until late February and sank six ships during this period, making it the most successful submarine patrol conducted in Australian waters during World War II. [Stevens (2005). Pages 218–220.] In addition to these sinkings, "I-21"'s floatplane conducted a successful reconnaissance of Sydney Harbour on 19 February 1943. [Jenkins (1992). Pages 268–272.]
In March, "I-6" and "I-26" entered Australian waters. While "I-6" laid nine German-supplied acoustic mines in the approaches to Brisbane this minefield was discovered by HMAS "Swan" and neutralised before any ships were sunk. [Stevens (2005). Pages 223–224.] Although "I-6" returned to Rabaul after laying her mines, the Japanese submarine force in Australian waters was expanded in April when the four submarines of Submarine Squadron 3 ("I-11", "I-177", "I-178" and "I-180") arrived off the east coast and joined "I-26". This force had the goal of attacking reinforcement and supply convoys travelling between Australia and New Guinea. [Jenkins (1992). Pages 272–273.]
As the Japanese force was too small to cut off all traffic between Australia and New Guinea, the Squadron commander widely dispersed his submarines between the Torres Strait and Wilson's Promontory with the goal of tying down as many Allied ships and aircraft as possible. This offensive continued until June and the five Japanese submarines sank nine ships and damaged several others. [Stevens (2005). Pages 230–231.] In contrast to 1942, five of the ships sunk off the Australian east coast were travelling in escorted convoys at the time they were attacked. The convoy escorts were not successful in detecting any submarines before they launched their attacks or counter-attacking these submarines. [Gill (1968). Pages 253–262.] The last attack by a Japanese submarine off the east coast of Australia was made by "I-174" on 16 June 1943 when she sank the merchant ship "Portmar" and damaged U.S.
Landing Ship Tank"LST 469" as they were travelling in an escorted convoy off the New South Wales north coast. [Gill (1968). Pages 261–262.]
The single greatest loss of life resulting from a submarine attack in Australian waters occurred in the early hours of 14 May 1943 when "I-177" torpedoed and sank Australian Hospital Ship "Centaur" off
Point Lookout, Queensland. After being hit by a single torpedo "Centaur" sank in less than three minutes with the loss of 268 lives. While hospital ships such as "Centaur" were legally protected against attack under the terms of the Geneva Conventionsit is unclear whether CommanderHajime Nakagawa of "I-177" was aware that "Centaur" was a hospital ship. While she was clearly marked with a red cross and was fully illuminated, the light conditions at the time may have resulted in Nakagawa not being aware of " Centaur"'s status, making her sinking a tragic accident. However, as Nakagawa had a poor record as a submarine captain and was later convicted of machine gunning the survivors of a British merchant ship in the Indian Ocean, it is probable that the sinking of "Centaur" was due to either Nakagawa's incompetence or indifference to the laws of warfare. [Jenkins (1992). Pages 277–285.] The attack on "Centaur" sparked widespread public outrage in Australia. [Tom Frame (2004), "No Pleasure Cruise: The Story of the Royal Australian Navy". Allen & Unwin, Sydney. Pages 186–187.]
The Japanese submarine offensive against Australia was broken off in July 1943 when the submarines were redeployed to counter Allied offensives elsewhere in the Pacific. The last two Japanese submarines to be dispatched against the Australian east coast, "I-177" and "I-180", were redirected to the central Solomon Islands shortly before they would have arrived off Australia in July. [Stevens (2005). Page 246.] The Australian Naval authorities were concerned about a resumption of attacks, however, and maintained the coastal convoy system until late 1943 when it was clear that the threat had passed. Coastal convoys in waters south of Newcastle ceased on 7 December and convoys off the north-east coast and between Australia and New Guinea were abolished in February and March 1944 respectively. [Stevens (2005). Pages 246–248.]
Bombardment of Port Gregory (January 1943)
In contrast to the large number of submarines which operated off the east coast, only a single Japanese submarine was dispatched against the Australian west coast in 1943. On 21 January 1943, "I-165" left her base at
Surabaya, East Java, destined for Western Australia. The submarine, under Lt Comm. Kennosuke Torisu, was tasked with creating a diversion to assist the evacuation of Japanese forces from Guadalcanalfollowing their defeat there. Another submarine, "I-166", had undertaken a diversionary bombardment of the Cocos (Keeling) Islandson 25 December, 1942. [David Stevens, 'Forgotten assault' in [http://www.awm.gov.au/wartime/index.asp "Wartime"] Issue 18, 2002.] It appears that Torisu's original objective was to bombard the port of Geraldton, Western Australia.
After a six day voyage southwards, "I-165" reached Geraldton on 27 January. However, Torisu believed that he had sighted a
destroyernear the town and broke off his attack. "I-165" instead headed north for the small fishing settlement of Port Gregory. At around midnight on 28 January, the submarine's crew fired 10 rounds from her 100 mm deck gun at the town. The shells appear to have completely missed Port Gregory and did not result in any damage or casualties. [Jenkins (1992). Pages 266–267.] While gunfire was sighted by nearby coastwatchers, Allied naval authorities only learned of the attack when Lt Comm. Torisu's battle report radio signal was intercepted and decoded a week later. As a result, the attack was not successful in diverting attention away from Guadalcanal. [Stevens (2002)]
"I-165" returned twice to Australian waters. In September 1943, she made an uneventful reconnaissance of the north west coast. "I-165" conducted another reconnaissance patrol off north western Australian between 31 May and 5 July 1944. This was the last time a Japanese submarine entered Australian waters. [Jenkins (1992). Page 286.]
German raider Michel (June 1943)
HSK "Michel" was the final German surface raider to enter Australian waters. "Michel" departed
Yokohama, Japanon her second raiding cruise on 21 May 1943 and entered the Indian Ocean in June. On 14 June she sank the Norwegian 7,715 ton tanker "Høegh Silverdawn" [Warsailors.com: [http://www.warsailors.com/raidervictims/michel2.html M/T "Høegh Silverdawn"] ] about convert|1800|mi|km north-west of Fremantle. "Michel" followed up this success two days later by sinking a second Norwegian tanker, the 9,940 ton "Ferncastle", [Warsailors.com: [http://www.warsailors.com/singleships/ferncastle.html M/T "Ferncastle"] ] in the same area. Both tankers were sailing from Western Australia to the Middle Eastand 47 Allied sailors and passengers were killed as a result of the attacks. Following these sinkings "Michel" sailed well to the south of Australia and New Zealand and operated in the eastern Pacific. On 3 September she sank Norwegian 9,977 ton tanker "India" [Warsailors.com: [http://www.warsailors.com/raidervictims/michel2.html#india M/T "India] ] west of Easter Islandwhile the tanker was sailing from Peruto Australia. [Gill (1968). Page 297 and Bismarck-class.dk [http://www.bismarck-class.dk/hilfskreuzer/michel.html Hilfskreuzer (Auxiliary Cruiser) Michel] . Accessed 3 June 2007.]
The Axis naval threat to Australia declined in line with the Allied successes in the Pacific Theatre in 1944 and only three ships were sunk by Axis naval vessels on the Australia Station during 1944 and 1945. While the Japanese conducted their only landing on the Australian mainland during 1944, this was a small reconnaissance operation. As the threat from Axis attacks declined the Allies further reduced the forces assigned to protecting shipping in Australian waters. These forces were not completely disbanded until the end of the war, however.
The Japanese landing in Australia (January 1944)
While the Japanese government never adopted proposals to invade Australia, [Dr. Peter Stanley (2002). " [http://www.awm.gov.au/events/conference/2002/stanley_paper.pdf He's (Not) Coming South: The Invasion That Wasn't] "] a single reconnaissance landing was made on the Australian mainland. Between January 17 and 20, 1944, members of a Japanese intelligence unit named "Matsu Kikan" ("Pine Tree") made a reconnaissance mission to a sparsely-populated part of the
Kimberley region of Western Australia.Peter Dunn [http://home.st.net.au/~dunn/japsland/land09.htm Japanese Army reconnaissance party landed in Western Australia near Cartier and Brows Islands] . Accessed 29 June 2006.] The unit, operating from Kupang, West Timor, used a converted 25-ton civilian vessel called "Hiyoshi Maru" and posed as a fishing crew. The mission was led by Lt Susuhiko Mizuno of the Japanese Army and included another three Japanese army personnel, six Japanese naval personnel and 15 West Timorese sailors. Their orders, from the Japanese 19th Armyheadquarters at Ambon, were to verify reports that the U.S. Navy was building a base in the area. In addition, the "Matsu Kikan" personnel were ordered to collect information which would assist any guerrilla attacks against the Australian mainland.Henry P. Frei (1991), "Japan's Southward Advance and Australia. From the Sixteenth Century to World War II". Melbourne University Press, Melbourne. Page 173.]
"Hiyoshi Maru" left Kupang on 16 January and was given air cover for the outward leg by an
Aichi D3Adive bomber which reportedly attacked an Allied submarine on route. On January 17, "Hiyoshi Maru" visited the Ashmore Reefarea. The following day the crew landed on the tiny and uninhabited Browse Island, about 160 km (100 mi) north west of the mainland.
On the morning of 19 January, "Hiyoshi Maru" entered
York Soundon the mainland. Although the crew saw smoke emanating from hills to the east of their location, they anchored the ship and camouflaged it with tree branches. Local historians state that "Matsu Kikan" landing parties went ashore near the Roe and Moran Rivers. [ [http://kimberleysociety.org/past95.html Daphne Choules Edinger, 1995, "Exploring the Kimberley Coast" and; Cathie Clement, 1995, "World War II and the Kimberley"] (The Kimberley Society)] They reportedly explored the area for about two hours, and some members of the mission filmed the area using an 8 mm camera. The "Matsu Kikan" personnel spent the night on the boat and reconnoitred the shore area again the following day, before returning to Kupang. The Japanese did not sight any people or signs of recent human activity and little of military significance was learnt from the mission. The only witnesses to the Japanese party were members of a small RAAF construction party working on the planned Truscott Airfield, 25 km (15.5 mi) away who reported hearing marine engines nearby.
Japanese operations in the Indian Ocean (March 1944)
In February 1944, the
Japanese Combined Fleetwithdrew from its base at Truk and was divided between Palauand Singapore. The appearance of a powerful Japanese squadron at Singapore concerned the Allies, as it was feared that this force could potentially conduct raids in the Indian Oceanand against Western Australia. [Odgers (1968). Page 136.]
On 1 March 1944 a Japanese squadron consisting of the heavy cruisers "Aoba" (
flagship), "Tone" and "Chikuma", under Vice Adm. Naomasa Sakonju, sortied from Sunda Straitto attack Allied shipping sailing on the main route between Adenand Fremantle. The only Allied ship this squadron encountered was the British steamer "Behar", which was sunk midway between Ceylonand Fremantle on 9 March 1944. Following this attack the squadron broke off its mission and returned to Batavia as it was feared that Allied ships responding to "Behar's" distress signal posed an unacceptable risk. While 102 survivors from "Behar" were rescued by "Tone", 82 of these prisoners were murdered after the cruiser arrived in Batavia on 16 March. Following the war Vice Adm. Sakonju was executed for war crimes which included the killing of these prisoners, while the former commander of "Tone", Capt. Haruo Mayazumi, was sentenced to seven years imprisonment. [ Children & Families of Far East Prisoners of War. [http://www.cofepow.org.uk/pages/ships_behar.htm The "Behar"] . Accessed 16 September 2006.] The sortie mounted by "Aoba", "Tone" and "Chikuma" was the last raid mounted by Axis surface ships against the Allied lines of communication in the Indian Ocean, or elsewhere, during World War II. [Gill (1968). Page 390]
While the Japanese raid into the Indian Ocean was not successful, associated Japanese shipping movements provoked a major Allied response. In early March 1944 Allied intelligence reported that two
battleships escorted by destroyers had left Singapore in the direction of Surabayaand a U.S. submarine made radar contact with two large Japanese ships in the Lombok Strait. The Australian Chiefs of Staff Committee reported to the Government on 8 March that there was a possibility that these ships could have entered the Indian Ocean to attack Fremantle. In response to this report, all ground and naval defences at Fremantle were fully manned, all shipping was ordered to leave Fremantle and several RAAF squadrons were redeployed to bases in Western Australia. [Odgers (1968). Pages 136–139.]
This alert proved to be a false alarm, however. The Japanese ships detected in the
Lombok Straitwere actually the light cruisers "Kinu" and "Oi" which were covering the return of the surface raiding force from the central Indian Ocean. The alert was lifted at Fremantle on 13 March and the RAAF squadrons began returning to their bases in eastern and northern Australia on 20 March. [Gill (1968). Pages 390–391.]
The German submarine offensive (September 1944–January 1945)
On 14 September 1944, the commander of the "Kriegsmarine",
Grand Admiral Karl Dönitz, approved a proposal to send two Type IXD U-Boats into Australian waters with the objective of tying down Allied anti-submarine assets in a secondary theatre. The U-Boats involved was drawn from the " Monsun Gruppe" ("Monsoon Group"), and the two selected for this operation were "U-168" and "U-862". [Stevens (2005). Page 262.] An additional submarine, "U-537", was added to this force at the end of September. [David Stevens (1997), "U-Boat Far from Home". Allen & Unwin, Sydney. Page 119.]
Due to the difficulty of maintaining German submarines in Japanese bases, the German force was not ready to depart from its bases in
Penangand Batavia (Jakarta) until early October. By this time, the Allies had intercepted and decoded German and Japanese messages describing the operation and were able to vector Allied submarines onto the German boats. The Dutch submarine "Zwaardvisch" sank "U-168" on 6 October near Surabaya[Paul Kemp (1997), "U-Boats Destroyed. German Submarine Losses in the World Wars". Arms and Armour, London. Page 221.] and the USS "Flounder" sank "U-537" on 10 November near the northern end of the Lombok Strait. [Kemp (1997). Page 224.] Due to the priority accorded to the Australian operation, "U-196" was ordered to replace "U-168". [Stevens (1997). Page 124.] However, "U-196" disappeared in the Sunda Straitsome time after departing from Penang on November 30. The cause of "U-196's" loss is not known, though it was probably due to an accident or mechanical fault. [Kemp (1997). Page 225. Kemp suggests that "U-196" may have been lost in a diving accident or due to a fault in the boat's locally constructed snorkel.]
The only surviving submarine of the force assigned to attack Australia, "
U-862", under " Korvettenkapitän" Heinrich Timm, departed Batavia on 18 November 1944, and arrived off the south west tip of Western Australiaon 26 November. The submarine had great difficulty finding targets as the Australian naval authorities, warned of "U-862"'s approach, had directed shipping away from the routes normally used. "U-862" unsuccessfully attacked the Greek freighter "Ilissos" off the South Australian coast on December 9, with bad weather spoiling both the attack and subsequent Australian efforts to locate the submarine. [Stevens (1997). Pages 147–151.]
Following her attack on "Ilissos", "U-862" continued east along the Australian coastline, becoming the only German submarine to operate in the Pacific Ocean during World War II. [Uboat.net [http://www.uboat.net/ops/monsun3.htm "The Monsun boats"] . Accessed 5 August 2006.] After entering the Pacific "U-862" scored her first success on this patrol when she attacked the US-registered
Liberty Ship"Robert J. Walker" off the south coast of New South Waleson 24 December 1944. The ship sank the following day. Following this attack, "U-862" evaded an intensive search by Australian aircraft and warships and departed for New Zealand. [Stevens (1997). Pages 159–173.]
As "U-862" did not find any worthwhile targets off New Zealand, the submarine's commander planned to return to Australian waters in January 1945 and operate to the north of Sydney. "U-862" was ordered to break off her mission in mid-January, however, and return to
Jakarta. [Stevens (2005). Page 278.] On her return voyage, the submarine sank another U.S. Liberty Ship, "Peter Silvester", approximately 1,520 kilometres (820 nautical miles) southwest of Fremantle on 6 February 1945. "Peter Silvester" was the last Allied ship to be sunk by the Axis in the Indian Oceanduring the war. [Gill (1968). Page 557.] "U-862" arrived in Jakartain mid February 1945 and is the only Axis ship known to have operated in Australian waters during 1945. Following Germany's surrender "U-862" became the Japanese submarine "I-502" but was not used operationally. [Stevens (1997). Page 222.]
While Allied naval authorities were aware of the approach of the German strike force and were successful in sinking two of the four submarines dispatched, efforts to locate and sink "U-862" once she reached Australian waters were continually hampered by a lack of suitable ships and aircraft and a lack of personnel trained and experienced in anti-submarine warfare. [Stevens (2005). Page 258.] As the southern coast of Australia was thousands of kilometres behind the active combat front in South-East Asia and had not been raided for several years it should not be considered surprising that few anti-submarine assets were available in this area in late 1944 and early 1945. [Stevens (1997). Pages 164–165.]
A total of six German surface raiders, four Japanese aircraft carriers, seven Japanese cruisers, nine Japanese destroyers and twenty eight Japanese and German submarines operated in Australian waters between 1940 and 1945. These 54 warships sank 53 merchant ships and 3 warships within the Australia Station, resulting in the deaths of over 1,751 Allied military personnel, sailors and civilians. Over 88 people were also killed by IJN air attacks on towns in northern Australia. In exchange, the Allies sank one German surface raider, one full-sized Japanese submarine and two midget submarines within Australian waters, resulting in the deaths of 157 Axis sailors. A further two German submarines were sunk while en-route to Australian waters with the loss of 81 sailors. [Uboat.net [http://uboat.net/boats/u168.htm U-168] and [http://uboat.net/boats/u537.htm U-537] . Accessed 7 October 2006.]
* The six German and three Japanese surface raiders that operated within Australian waters sank 18 ships and killed over 826 sailors (including the 82 prisoners murdered on board "Tone" in 1944). HSK "Kormoran" was the only Axis surface ship to be sunk within the Australia Station, and 78 of her crew were killed. [Figures compiled from Gill (1957).]
* The 17 ships in the Japanese carrier force that raided Darwin in 1942 sank nine ships and killed 251 people for the loss of four aircraft. [Lewis (2003).] A further 14 sailors and civilians were killed in the sinking of HMAS "Patricia Cam" and the attacks on "Period" and "Islander" in 1943 and 88 people were killed during the raid on Broome in 1942.
* The 28 Japanese and German submarines that operated in Australian waters between 1942 and 1945 sank a total of 30 ships with a combined tonnage of 151,000 gross tons; 654 people, including 200 Australian merchant seamen, were killed onboard the ships attacked by submarines. [Jenkins (1992). Pages 286–287.] It has also been estimated that the RAAF lost at least 23 aircraft and 104 airmen to flying accidents during anti-submarine patrols off the Australian coast. [David Joseph Wilson (2003) [http://www.library.unsw.edu.au/~thesis/adt-ADFA/public/adt-ADFA20031029.102545/index.html "The Eagle and the Albatross : Australian Aerial Maritime Operations 1921–1971"] . PhD thesis. Page 120.] In exchange, the Allies sank only a single full-sized Japanese submarine in Australian waters ("I-124") and two of the three midgets that entered Sydney Harbour. A total of 79 Japanese sailors died in these sinkings, and a further two sailors died onboard the third midget, which was scuttled after leaving Sydney Harbour. [Figures compiled from Jenkins (1992).]
While the scale of the Axis naval offensive directed against Australia was small compared to other naval campaigns of the war such as the
Second Battle of the Atlantic, they were still "the most comprehensive and widespread series of offensive operations ever conducted by an enemy against Australia". [David Stevens. " [http://ajrp.awm.gov.au/AJRP/AJRP2.nsf/437f72f8ac2c07238525661a00063aa6/225b90b97196e29bca256a1d00130203?OpenDocument Japanese submarine operations against Australia 1942–1944] ". Accessed 1 September 2006.] Due to the limited size of the Australian shipping industry and the importance of sea transport to the Australian economy and Allied military in the South West Pacific, even modest shipping losses had the potential to seriously damage the Allied war effort in the South West Pacific.
Despite the vulnerability of the Australian shipping industry, the Axis attacks did not seriously affect the Australian or Allied war effort. While the German surface raiders which operated against Australia caused considerable disruption to merchant shipping and tied down Allied naval vessels, they did not sink many ships and only operated in Australian waters for a few short periods. [Alastair Cooper (2001).] The effectiveness of the Japanese submarine campaign against Australia was limited by the inadequate numbers of submarines committed and flaws in Japan's submarine doctrine. The submarines were, however, successful in forcing the Allies to devote considerable resources to protecting shipping in Australian waters between 1942 and late 1943. [Stevens. " [http://ajrp.awm.gov.au/AJRP/AJRP2.nsf/437f72f8ac2c07238525661a00063aa6/225b90b97196e29bca256a1d00130203?OpenDocument Japanese submarine operations against Australia 1942–1944] ". Accessed 1 September 2006.] The institution of coastal convoys between 1942 and 1943 may have also significantly reduced the efficiency of the Australian shipping industry during this period. [Stevens (2005). Page 334.]
The performance of the Australian and Allied forces committed to the defence of shipping on the Australia station was mixed. While the threat to Australia from Axis raiders was "anticipated and addressed", [Seapower Centre - Australia (2005). [http://www.navy.gov.au/Publication:Navy_Contribution_to_Australian_Maritime_Operations "The Navy Contribution to Australian Maritime Operations"] . Defence Publishing Service, Canberra. Page 179.] only a small proportion of the Axis ships and submarines which attacked Australia were successfully located or engaged. Several German raiders operated undetected within Australian waters in 1940 as the number of Allied warships and aircraft available were not sufficient to patrol these waters [Gavin Long (1973), "The Six Years War. A Concise History of Australia in the 1939–45 War". Australian War Memorial and Australian Government Publishing Service, Canberra. Page 33.] and the loss of HMAS "Sydney" was a high price to pay for sinking HSK "Kormoran" in 1941. While the Australian authorities were quick to implement convoys in 1942 and no convoyed ship was sunk during that year, the escorts of the convoys that were attacked in 1943 were not successful in either detecting any submarines before they launched their attack or successfully counter-attacking these submarines. [Stevens (2005). Page 331.] Factors explaining the relatively poor performance of Australian anti-submarine forces include their typically low levels of experience and training, shortages of ASW assets, problems with co-ordinating searches and the poor
sonarconditions in the waters surrounding Australia.Stevens (2005). Page 281.] Nevertheless, "success in anti-submarine warfare cannot be measured simply by the total of sinkings achieved" and the Australian defenders may have successfully reduced the threat to shipping in Australian waters by making it harder for Japanese submarines to carry out attacks. [Odgers (1968). Page 153.]
Axis naval activity in New Zealand waters
Books and printed material
Australia in the War of 1939–1945
** G. Herman Gill (1957), [http://www.awm.gov.au/histories/chapter.asp?volume=24 "Australia in the War of 1939–1945. Series 2 – Navy. Volume I 1939–1942"] .
Australian War Memorial, Canberra.
** G. Herman Gill (1968), [http://www.awm.gov.au/histories/chapter.asp?volume=25 "Australia in the War of 1939–1945. Series 2 – Navy. Volume II – Royal Australian Navy, 1942–1945"] .
Australian War Memorial, Canberra.
** Douglas Gillison (1962), [http://www.awm.gov.au/histories/chapter.asp?volume=26 "Australia in the War of 1939–1945. Series 3 - Air. Volume I – Royal Australian Air Force, 1939–1942".] Australian War Memorial, Canberra.
** George Odgers (1968), [http://www.awm.gov.au/histories/chapter.asp?volume=27 "Australia in the War of 1939–1945. Series 3 - Air. Volume II – Air War Against Japan, 1943–1945".] Australian War Memorial, Canberra.
** Gavin Long (1973), "The Six Years War. A Concise History of Australia in the 1939–45 War". Australian War Memorial and Australian Government Publishing Service, Canberra. ISBN 0-642-99375-0
* Steven L Carruthers (1982), "Australia Under Siege: Japanese Submarine Raiders, 1942". Solus Books. ISBN 0-9593614-0-5
* John Coates (2001), "An Atlas of Australia's Wars". Oxford University Press, Melbourne. ISBN 0195541197
* Tom Frame (1993), "HMAS Sydney. Loss and Controversy". Hodder & Stoughton, Sydney. ISBN 0-340-58468-8
* Tom Frame (2004), "No Pleasure Cruise: The Story of the Royal Australian Navy". Allen & Unwin, Sydney. ISBN 1-74114-233-4
* Henry P. Frei (1991), "Japan's Southward Advance and Australia. From the Sixteenth Century to World War II". Melbourne University Press, Melbourne. ISBN 0-522-84392-1
* David Horner (1993). 'Defending Australia in 1942' in "War and Society", Volume 11, Number 1, May 1993.
* David Jenkins (1992), "Battle Surface! Japan's Submarine War Against Australia 1942–44". Random House Australia, Sydney. ISBN 0-09-182638-1
* Paul Kemp (1997), "U-Boats Destroyed. German Submarine Losses in the World Wars". Arms and Armour, London. ISBN 1-85409-321-5
* Tom Lewis (2003). "A War at Home. A Comprehensive guide to the first Japanese attacks on Darwin". Tall Stories, Darwin. ISBN 0-9577351-0-3
Samuel Eliot Morison(1949 (2001 reprint)). "Coral Sea, Midway and Submarine Actions, May 1942–August 1942", Volume 4 of History of United States Naval Operations in World War II. University of Illinois Press, Champaign. ISBN 0-252-06995-1
* Robert Nichols 'The Night the War Came to Sydney' in [http://www.awm.gov.au/wartime/index.asp "Wartime"] Issue 33, 2006.
* Albert Palazzo (2001). "The Australian Army : A History of its Organisation 1901–2001". Oxford University Press, Melbourne, 2001. ISBN 0-19-551506-4
* Seapower Centre - Australia (2005). [http://www.navy.gov.au/Publication:Navy_Contribution_to_Australian_Maritime_Operations "The Navy Contribution to Australian Maritime Operations"] . Defence Publishing Service, Canberra. ISBN 0-642-29615-4
* David Stevens, 'The War Cruise of "I-6", March 1943' in "Australian Defence Force Journal" No. 102 September/October 1993. Pages 39–46.
* David Stevens (1997), "U-Boat Far from Home". Allen & Unwin, Sydney. ISBN 1-86448-267-2
* David Stevens, 'Forgotten assault' in [http://www.awm.gov.au/wartime/index.asp "Wartime"] Issue 18, 2002.
* David Stevens (2005), [http://www.navy.gov.au/Publication:Papers_in_Australian_Maritime_Affairs_No._15 RAN Papers in Australian Maritime Affairs No. 15 "A Critical Vulnerability: The impact of the submarine threat on Australia's maritime defence 1915–1954"] . Seapower Centre - Australia, Canberra. ISBN 0-642-29625-1
* Sydney David Waters (1956), [http://www.nzetc.org/tm/scholarly/tei-WH2Navy.html "The Royal New Zealand Navy"] . Historical Publications Branch, Wellington.
External links and articles
* [http://www.awm.gov.au/ Australian War Memorial website]
* Alastair Cooper (2001). " [http://www.awm.gov.au/events/conference/2001/cooper.htm Raiders and the Defence of Trade: The Royal Australian Navy in 1941] ". Paper delivered to the Australian War Memorial conference [http://www.awm.gov.au/events/conference/2001/index.htm Remembering 1941] .
* Peter Dunn. [http://home.st.net.au/~dunn/index.htm Australia @ War]
* Bob Hackett and Sander Kingsepp (2006). [http://www.combinedfleet.com/sensuikan.htm combinedfleet.com - Japanese Submarines]
* Tanaka Hiromi [http://www.awm.gov.au/journal/j30/tanaka.htm 'The Japanese Navy's operations against Australia in the Second World War, with a commentary on Japanese sources'] in "The Journal of the Australian War Memorial". Issue 30 - April 1997.
* Dr. Peter Stanley (2002). " [http://www.awm.gov.au/events/conference/2002/stanley_paper.pdf He's (Not) Coming South: The Invasion That Wasn't] ". Paper delivered to the Australian War Memorial conference [http://www.awm.gov.au/events/conference/2002/index.htm Remembering 1942] .
* Dr. Peter Stanley (2006). " [http://www.awm.gov.au/events/talks/oration2006.asp Was there a Battle for Australia?] " Australian War Memorial Anniversary Oration, 10 November 2006.
* David Stevens " [http://ajrp.awm.gov.au/AJRP/AJRP2.nsf/437f72f8ac2c07238525661a00063aa6/225b90b97196e29bca256a1d00130203?OpenDocument Japanese submarine operations against Australia 1942–1944] ".
* U-Boat.net [http://www.uboat.net/ops/monsun.htm Monsun boats U-boats in the Indian Ocean and the Far East]
* David Joseph Wilson (2003) [http://www.library.unsw.edu.au/~thesis/adt-ADFA/public/adt-ADFA20031029.102545/index.html "The Eagle and the Albatross : Australian Aerial Maritime Operations 1921–1971"] . PhD thesis.
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