Mongols and Allies .
Japan
Because Japan invaded China, and Japan was an axis power.
Japan
Manchuria was neither. It was invaded by Japan in the 1930's and was under Japanese occupation during the war.
(Apex) Only Japan industrialized after being pressured by a foreign power.
I think you are asking about the invasion of the Eight Power Allied Forces on September 7, 1901. The 8 countries were Britain, the United States, France, Germany, Japan, Russia, Austria and Italy. China has been invaded by numerous countries. The Tatars invaded China, The Tibetans invaded China, Vietnam invaded China in 1075, The Manchu Tribes invaded in 1644, The French and British invaded in 1856. In addition they were invaded by Japan in 1895, 1931, and 1937. The previous answer is also correct.
Because of Hiroshima and Nagasaki bombing. Also, Japan had committed war crimes. Also, Japan has promised to the entire world to not to commit crimes again. And, it says if Japan has a strange movement, or if it attacks, then, foreign country can attack them without any declaration.
Expansion increased the power of military leaders who supported totalitarianism
Germany invaded Italy in 1944.
Nuclear power is successfully used right now.
China was weakened by foreign influence. Manchuria is rich in Natural Resources, which Japan desperately needed for its rapid industrial development. Among many other reasons, Japan saw this as a chance to seize power in the region.
Japan: Power greedy which means they wanted lots of lands. Germany: Hitler said that it should have their lands they lost in World War 1. So they invaded Czechslovakia and attacked Poland.