Disputes and crises in the contemporary world threaten international peace.
japan
Japan
They invaded the Chinese province of manchuria in 1931 That would have been the League of Nations, as UN didn't exist until 1945.
Japan invaded Manchuria in the 1930's.
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.
Japan
The League did absolutely nothing about it. They figured they should leave well enough alone because it had no effect on them, so why bother?
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 invaded Manchuria in 1931 .
Japan
Japan.
In 1931, Japan invaded and occupied Manchuria.