Concept
Kwantung Army
Related concepts (27)
Unit 100
was an Imperial Japanese Army facility called the Kwantung Army Warhorse Disease Prevention Shop that focused on the development of biological weapons during World War II. It was operated by the Kempeitai, the Japanese military police. Its headquarters was located in Mokotan, Manchukuo, a village just south of the city of Changchun. It had branches in Dairen and Hailar. The Hailar branch was later transferred to Foshan. Between 600 and 800 people worked at Unit 100. Unit 100 had six sections.
Battle of Lake Khasan
The Battle of Lake Khasan (29 July – 11 August 1938), also known as the Changkufeng Incident (Хасанские бои, Chinese and Japanese: ; Chinese pinyin: ; Japanese romaji: ) in China and Japan, was an attempted military incursion by Manchukuo, a Japanese puppet state, into the territory claimed and controlled by the Soviet Union. That incursion was founded in the Japanese belief that the Soviet Union had misinterpreted the demarcation of the boundary based on the Treaty of Peking between Imperial Russia and Qing China and the subsequent supplementary agreements on demarcation and tampered with the demarcation markers.
Mengjiang
Mengjiang, also known as Mengkiang or the Mongol Border Land, officially referred to as the Mengjiang United Autonomous Government, was an autonomous area in Inner Mongolia, formed in 1939 as a puppet state of the Empire of Japan, then from 1940 being under the nominal sovereignty of the Reorganized National Government of the Republic of China (which was itself also a puppet state). It consisted of the previously Chinese provinces of Chahar and Suiyuan, corresponding to the central part of modern Inner Mongolia.
Unit 731
, short for Manshu Detachment 731 and also known as the Kamo Detachment and the Ishii Unit, was a covert biological and chemical warfare research and development unit of the Imperial Japanese Army that engaged in lethal human experimentation and biological weapons manufacturing during the Second Sino-Japanese War (1937–1945) and World War II. It killed an estimated 200,000 to 300,000 people. It was based in the Pingfang district of Harbin, the largest city in the Japanese puppet state of Manchukuo (now Northeast China, formerly named Manchuria) and had active branch offices throughout China and Southeast Asia.
Changchun
Changchun (UKtSæN'tSUn, UStSQN-; ) is the capital and largest city of Jilin Province in China. Lying in the center of the Songliao Plain, Changchun is administered as a , comprising 7 districts, 1 county and 3 county-level cities. According to the 2020 census of China, Changchun had a total population of 9,066,906 under its jurisdiction. The city's metro area, comprising 5 districts and 1 development area, had a population of 5,019,477 in 2020, as the Shuangyang and Jiutai districts are not urbanized yet.
Japanese colonial empire
The territorial conquests of the Empire of Japan in the Western Pacific Ocean and East Asia began in 1895 with its victory over Qing China in the First Sino-Japanese War. Subsequent victories over the Russian Empire (Russo-Japanese War) and German Empire (World War I) expanded Japanese rule to Taiwan, Korea, Micronesia, southern Sakhalin, several concessions in China, and the South Manchuria Railway. In 1931, Japan invaded Manchuria, resulting in the establishment of the puppet state of Manchukuo the following year; thereafter, Japan adopted a policy of founding and supporting puppet states in conquered regions.
Mukden Incident
The Mukden Incident was a false flag event staged by Japanese military personnel as a pretext for the 1931 Japanese invasion of Manchuria. On September 18, 1931, Lieutenant Suemori Kawamoto of the Independent Garrison Unit of the 29th Japanese Infantry Regiment (独立守備隊) detonated a small quantity of dynamite close to a railway line owned by Japan's South Manchuria Railway near Mukden (now Shenyang). The explosion was so weak that it failed to destroy the track, and a train passed over it minutes later.
Defense of the Great Wall
The defense of the Great Wall () (January 1 – May 31, 1933) was a campaign between the armies of Republic of China and Empire of Japan, which took place before the Second Sino-Japanese War officially commenced in 1937 and after the Japanese invasion of Manchuria in 1931. It is known in Japanese as Operation Nekka and in many English sources as the First Battle of Hopei. During this campaign, Japan successfully captured the Inner Mongolian province of Rehe from the Chinese warlord Zhang Xueliang, and incorporated it into the newly created state of Manchukuo, whose southern frontier was thus extended to the Great Wall of China.
Lüshunkou District
Lüshunkou District (also Lyushunkou District; ) is a district of Dalian, Liaoning province, China. Also formerly called Lüshun City () or literally Lüshun Port (), it was formerly known as both Port Arthur (Порт-Артур ) and Ryojun (旅順). The district's area is and its permanent population is 324,773. Lüshunkou is located at the extreme southern tip of the Liaodong Peninsula. It has an excellent natural harbor, the possession and control of which became a casus belli of the Russo-Japanese War (1904–05).
Battle of Rehe
The Battle of Rehe (, sometimes called the Battle of Jehol) was the second part of Operation Nekka, a campaign by which the Empire of Japan successfully captured the Inner Mongolian province of Rehe from the Chinese warlord Zhang Xueliang and annexed it to the new state of Manchukuo. The battle was fought from February 21 to March 1, 1933. Following the establishment of Manchukuo, the Kwantung Army launched an operation to secure its southern frontier with China by attacking and capturing Shanhaiguan Pass at the Great Wall on 3 January 1933.