- Unit 516
Unit 516 was a top secret Japanese
chemical weapons facility, operated by the Kempeitai, in Qiqihar, Manchukuo.
An estimated 700,000 (Japanese estimation) to 2,000,000 (Chinese estimation) Japanese-produced chemical weapons were buried in China. Until 1995, Japan had refused to acknowledge that it dumped chemical weapons in the
Yen Riverin Manchuria, leaving huge amounts behind. The Chinese believe Japan dumped these chemicals to erase all evidence of its chemical warfare tactics used on China.
Bromobenzyl cyanideand Chloroacetophenone
At the end of
World War II, the Imperial Japanese Armyburied some of their chemical weapons in China, but most were confiscated by Soviet Red Army, the People's Liberation Armyand the Kuomintang Army, along with other weapons. The Soviet Unionlater handed over these weapons to China (ROC), who then buried them. Japanese chemical weapons were later found mixed with Soviet and Chinese chemical weapons. The [http://www.nids.go.jp/english/index.html Japanese National Institute for Defense Studies] has a record of Japanese weapons confiscated by Kuomintang Army along with a list of the types of chemical weapons. No confiscation records about ROC / Russia have been found. However, no country has records about the locations of the buried chemical weapons. China has started gathering these abandoned weapons for destruction and burial, and they are currently buried in remote DunhuaCounty, in Haerbaling, Jilin(吉林) province.
Chemical Weapons Convention
One of the focuses of the Chemical Weapons Convention was to assign responsibility for the destruction of old chemical weapons in China. The Convention was signed in 1993 and according to it, all chemical weapons created after 1925 must be destroyed by the originating-country. Under the convention, Japan is building a factory in China to destroy chemical weapons.
Changde chemical weapon attack
Imperial Japanese Army
Imperial Japanese Navy
Japanese war crimes
Weapons of mass destruction
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