By placing trade restrictions on Japan.
Big enough to attempt world conquest.
Japan had conflicts with China and Russia before World War one.
Japan
See website: Japan
The Emperor ruled Japan.
Before.
Japan admired Chinese culture and learned much from them. Before World War II, Japan invaded China.
Before Germany invaded Poland in 1939, before Japan bombed Pearl harbor in 1941, Japan was fighting in China.
Yes
No. For centuries before and during ww2 Japan had always been imperialists.
Japan invaded Manchuria in 1931 - before the start of World War 2.