- Romania during World War I
partof=Balkans Campaign (
World War I)
date= August 1916 - January 1917
Central Powersvictory, Treaty of Bucharest
Erich von Falkenhayn
August von Mackensen
Conrad von Hötzendorf
casualties1=60,000 dead or wounded
casualties2=165,000 dead or wounded, 165,000 prisoners
notes=The Romanian Campaign was a campaign in the Balkan theatre of
World War I, with Romania and Russia allied against the armies of the Central Powers.
Before the war
The Kingdom of Romania was ruled by kings of the
House of Hohenzollernsince 1866. For many years before the start of World War I, Romania was an ally of Austria-Hungary. However, under the terms of the alliance, Romania was obliged to go to war only in the event Austria-Hungary was attacked. When the war started, Romania argued that Austria-Hungary itself had started the war and, consequently, Romania was under no formal obligation to join in the war. This was essentially the same argument that Italy used at the start of World War I. Like Italy, Romania eventually joined the Allies.
In order to enter the war on Allied side, the Kingdom of Romania demanded recognition of its rights over the territory of
Transylvania, which had been controlled by Austria-Hungary since the 17th century, even though Romanianswere a majority in Transylvania (see History of Transylvania). The Allies accepted the terms late in the summer of 1916 ("see Treaty of Bucharest, 1916"). If Romania had sided with the Allies earlier in the year, before the Brusilov Offensive, perhaps the Russians would not have lost [Cyril Falls, "The Great War" p. 228] . According to some American military historians, Russia delayed approval of Romanian demands out of worries about Romanian territorial designs on Bessarabiawhich was also inhabited by a Romanian majority [Vincent Esposito, "Atlas of American Wars, Vol 2", text for map 37] . According to British military historian John Keegan, before Romania entered the war the Allies had secretly agreed not to honour the territorial expansion of Romania when the war ended [John Keegan, "The First World War", pg. 306] .
The Romanian government signed a treaty with the Allies on
August 17 1916and declared war on the Central Powers on August 27. The Romanian Armywas quite large, about 500,000 men in 23 divisions. However, it had officers with poor training and equipment; more than half of the army was hardly trained. Meanwhile, the German Chief of Staff, General Erich von Falkenhayncorrectly reasoned that Romania would side with the Allies and made plans to deal with Romania. Thanks to the earlier conquest of Serbia and the ineffective Allied operations on the Greek border, and having a territorial interest in Dobrogea, the Bulgarian Armyand the Ottoman Armywere willing to help fight the Romanians.
The German high command was seriously worried aboutt he prospect of Romania entering the war, Hindenburg writing:quotation|It is certain that so relatively small a state as Rumania had never before been given a role so important, and, indeed, so decisive for the history of the world at so favorable a moment. Never before had two great Powers like Germany and Austria found themselves so much at the mercy of the military resources of a country which had scarcely one twentieth of the population of the two great states. Judging by the military situation, it was to be expectedthat Rumania had only to advance where she wished to decide the world war in favor of those Powers which had been hurling themselves at us in vain for years. Thus everything seemed to depend on whether Rumania was ready to make any sort of use of her momentary advantage." [ Paul von Hindenburg, Out of My Life, Vol. I, trans. F.A. Holt (New York: Harper & Brothers, 1927), 243.]
Kingdom of Romania enters the war, late August 1916
August 27, three Romanian armies launched attacks through the Southern Carpathiansand into Transylvania. The attacks were initially successful in pushing weak Austro-Hungarian units out of the mountains, but the Austro-Hungarians sent four divisions to reinforce the Austro-Hungarian lines, and by the middle of September, the Romanian offensive was halted. The Russians loaned them three divisions for operations in the north of Romania but very few supplies.
The first counterattack came from General
August von Mackensenin command of a multi-national army of Bulgarian divisions, some Ottoman divisions, and a German brigade. This army attacked north from Bulgaria, starting on September 1. It stayed on the south side of the Danuberiver and headed towards Constanţa. The Romanian garrison of Turtucaia, encircled by Bulgarian troops (aided by a column of German troops) surrendered on September 6("see: Battle of Turtucaia").
September 15, the Romanian War Council decided to suspend the Transylvania offensive and destroy the Mackensen army group instead. The plan (the so-called "Flămânda Maneuver") was to attack the Central Powers forces from the rear by crossing the Danube at Flămânda, while the front-line Romanian and Russian forces were supposed to launch an offensive southwards towards Cobadinand Kurtbunar. On October 1, 2 Romanian divisions crossed the Danube at Flămânda and created a bridgehead14 kilometer-wide and 4 kilometer-deep. On the same day, the joint Romanian and Russian divisions went on offensive on the Dobrujafront, however with little success. The failure to break the Dobruja front, combined with a heavy storm on the night of October 1/2 which caused heavy damages to the pontoon bridge, determined Averescu to cancel the whole operation. This would have serious consequences for the rest of the campaign.
Russian reinforcements under General
Andrei Medardovich Zaionchkovskyarrived to halt Mackensen's army before it cut the rail line that linked Constanţa with Bucharest. Fighting was furious with attacks and counterattacks up till September 23.
Overall command was now under Falkenhayn (recently fired as German Chief of Staff) who started his own counterattack on
September 18. The first attack was on the Romanian First Army near the town of Haţeg; the attack halted the Romanian army advance. Eight days later, two Bulgarian divisions of mountain troops nearly cut off an advancing Romanian column near Hermannstadt (modern day Sibiu). Defeated, the Romanians retreated back into the mountains and the Bulgarian troops captured Turnu Roşu Pass. On October 4, the Romanian Second Army attacked the Austro-Hungarians at Kronstadt (modern day Braşov) but the attack was repulsed and the counterattack forced the Romanians to retreat here also. The Fourth Romanian army, in the north of the country, retreated without much pressure from the Austro-Hungarian troops so that by October 25, the Romanian army was back to its borders everywhere.
Back on the coast, General Mackensen launched a new offensive on
October 20, after a month of careful preparations, and his somewhat odd army defeated the Russian-Romanian troops under Zaionchkovsky's command. The Romanians and Russians were forced to withdraw out of Constanţa(occupied by the Central Powers on October 22). After the fall of Cernavodă, the defense of the unoccupied Dobruja was left only to the Russians, who were gradually pushed back towards the marshy Danube delta. The Russian army was now both demoralized and nearly out of supplies. Mackensen felt free to secretly pull half his army back to the town of Svishtov(in Bulgaria) with an eye towards crossing the Danube river.
The campaign in Romania
Falkenhayn's forces made several probing attacks into the mountain passes held by the Romanian army to see if there were weaknesses in the Romanian defences. After several weeks, he concentrated his best troops (the elite "Alpen Korps") in the south for an attack on the
Vulcan Pass. The attack was launched on November 10. One of the young officers was the future Field Marshal Erwin Rommel. On November 11, then-Lieutenant Rommel led the WürttembergMountain Company in the capture of Mount Lescului. The offensive pushed the Romanian defenders back through the mountains and into the plains by November 26. There was already snow covering the mountains and soon operations would have to halt for the winter. Advances by other parts of Falkenhayn's Ninth army also pushed through the mountains; the Romanian army was being ground down by the constant battle and their supply situation was becoming critical.
November 23, Mackensen's best troops crossed the Danube at two locations near Sistova. This attack caught the Romanians by surprise and Mackensen's army was able to advance rapidly towards Bucharest against very weak resistance. Mackensen's attack threatened to cut off half the Romanian army and so the Romanian Supreme Commander (the recently promoted General Prezan) tried a desperate counter-attack on Mackensen's force. The plan was bold, using the entire reserves of the Romanian army, but it needed the cooperation of Russian divisions to contain Mackensen's offensive while the Romanian reserve struck the gap between Mackensen and Falkenhayn. However, the Russian army disagreed with the plan and did not support the attack.
December 1, the Romanian army went ahead with the offensive. Mackensen was able to shift forces to deal with the sudden assault and Falkenhayn's forces responded with attacks at every point. Within three days, the attack had been shattered and the Romanians were retreating everywhere. The Romanian government and royal court relocated to Iaşi. Bucharest was captured on December 6by Falkenhayn's cavalry. Rains and terrible roads were the only things that saved the remainder of the Romanian army; more than 350,000 Romanian soldiers were captured.
The Russians were forced to send many divisions to the border area to prevent an invasion of southern Russia. The
Austro-Hungarian Army, after several engagements, was fought to a standstill by the middle of January 1917. The Romanian army still fought, but most of Romania was under German occupation.
Romanian casualties are estimated at between 300,000 and 400,000 (including POWs). German, Austrian, Bulgarian, and Ottoman losses are estimated at around 60,000.
This victory was an impressive feat for the German army and their generals Falkenhayn and Mackensen [Vincent Esposito, "Atlas of American Wars, Vol 2", text for map 40] as well as the Bulgarian army commanded by
Panteley Kiselov, Stefan Toshevand Todor Kantardzhiev. Most of the successful fighting had been done by German and Bulgarian divisions. German advantages in this war were: better supplies, better equipment, better training, and better leadership at all levels. Bulgarian advantages were better training, better leadership and high morale.
Fighting continued in 1917, as the northern part of Romania remained independent because of the triangle strategy, under which the Romanian Fourth Army (escaping destruction due to weather mentioned earlier), remained in the mountains in
Moldavia, protecting Iaşi against repeated German offensives. In May 1917, the Romanian army attacked alongside the Russians in support of the Kerensky Offensive. After succeeding in breaking the Austro-Hungarian front in the Battle of Mărăşti, the Russians and the Romanians had to stop their advance because of the disaster of the Kerensky Offensive. Then Mackensen's forces counter-attack led to the Battle of Mărăşeşti, which was an important victory for Romania, as the unoccupied land with the capital Iaşi remained free.
The Germans were able to repair the oil fields around
Ploieştiand by the end of the war had pumped a million tons of oil. They also requisitioned two million tons of grain from the Romanian farmers. These materials were vital in keeping Germany in the war to the end of 1918. [John Keegan, "World War I", pg. 308]
Clearly, Romania entered the war at a bad moment. Entry on the Allied side in 1914 or 1915 could have prevented the conquest of Serbia. Entry in early 1916 might have allowed the Brusilov Offensive to succeed. A mutual distrust was shared by Romania and the one major power that was in the position of directly helping it, Russia.General Esposito argues that the Romanian high command made grave strategic and operational mistakes:
Militarily, Romania's strategy could not have been worse. In choosing Transylvania as the initial objective, the Romanian Army ignored the Bulgarian Army to her rear. When the advance through the mountains failed, the high command refused to economize forces on that front to allow the creation of a mobile reserve with which Falkenhayn's later thrusts could be countered. Nowhere did the Romanians properly mass their forces to achieve concentration of combat power. [Vincent Esposito, "Atlas of American Wars, Vol 2", text for map 40]
Bolsheviks took power in Russia and signed the Treaty of Brest-Litovsk, Romania was left isolated and surrounded by German forces and it had little choice but to negotiate peace with Germany (see Treaty of Bucharest, 1918). Later on, in 1919, Germany agreed in the Treaty of VersaillesArticle 259 to renounce to all the benefits provided by the Treaty of Bucharest in 1918. [ [http://wwi.lib.byu.edu/index.php/Articles_248_-_263 Articles 248 - 263 - World War I Document Archive ] ] After the successful offensive on the Thessalonikifront which put Bulgaria out of the war, Romania re-entered the war on November 10, 1918, a day before its end in the West.
November 28, 1918, the Romanian representatives of Bukovinavoted for union with the Kingdom of Romania, followed by the proclamation of the union of Transylvania with the Kingdom of Romania on December 1, 1918, by the representatives of Transylvanian Romanians and of the Transylvanian Saxonsgathered at Alba Iulia.
The Treaty of Versailles recognized these proclamations under the right of national self-determination (see the Wilsonian
Fourteen Points). Romanian control of Transylvania, which had also a Hungarian population of 1,662,000 (34%, according to the census data of 1910), was widely resented in the new nation stateof Hungary. A war between the Hungarian Soviet Republicand the Kingdom of Romania, which was part of an Entente force with Serbian and Czechoslovakian armies attacking Hungary from all sides, was fought in 1919 and ended with a partial Romanian occupation of Hungary. Hungary would regain Northern Transylvaniathrough the Second Vienna Awardin 1940, but Romania regained the region after the end of World War II.
Romania's Strategic Position
The failure of the Romania front for the Entente was also the result of several factors beyond Romania's front. The failed Salonika Offensive did not meet the expectation of Romania's "guaranteed security" from Bulgaria [Torrey, Romania and World War I, p. 27] . This proved to be a critical strain on Romania's ability to wage a successful offensive in Transylvania, as troops needed to be diverted to the South [Istoria Romaniei, Vol. IV, p. 366] . Furthermore, Russian reinforcements in Romania did not materialize to the number of 200,000 soldiers initially demanded [Torrey, Romania and World War I, p. 65] . Romania was thus placed in a hard position several months after it joined the war, with the Entente unable to provide the support it had promised earlier.
* Esposito, Vincent (ed.) (1959). "The West Point Atlas of American Wars - Vol. 2"; maps 37-40. Frederick Praeger Press.
* Falls, Cyril. "The Great War" (1960), ppg 228-230.
* Keegan, John. "The First World War" (1998), ppg 306-308. Alfred A. Knopf Press.
* [http://www.the-map-as-history.com/demos/tome03/index.php Video with the redrawing of the borders after the First World War]
Kingdom of Romania| History of Romania| Greater Romania>
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