Japan decided to invade Manchuria the day after the Mukden incident, in 1931. However, the entire state of Manchuria was not conquered until 1932, so the answer to the question is 1932.
Japan conquered Manchuria in 1932, but several other countries and regions had conquered part or all of Manchuria in history, such as the Korean Kingdom of Gogoryeo, the Mongol Empire, the Tuvans, and several other groups.
The Japanese.
Russian invasion of Manchuria happened in 1900.
Soviet invasion of Manchuria happened in 1945.
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The Japanese took over Manchuria in 1932. This was an attempt by Japan to have control over some of the land that belonged to the Chinese.
The Japanese occupied all of Manchuria in 1931 and created the puppet state ofmanchuriahttp://www.answers.com/topic/manchukuo in 1932!!!
Prior to the outbreak of World War II, Imperial Japan completed their seizure of the Chinese province of Manchuria in early 1932. The occupation-invasion began in September of 1931 through an incident staged by Japanese military personnel.
It Happened in Paris - 1932 was released on: USA: 1932