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For their emperor and to expand their empire
Japan attacked Manchuria, this causing the second world war.
Because both countries wanted to expand their influence, and both wanted to avenge wrongful treaties imposed on them.
Japan fought in WWI to expand its influence on China and to increase its position in world rank of powers.
The United States did not want to acquire japan. Japan wanted to expand, resulting in the war in the pacific in World War II. Even after the U.S. defeated japan in World War II, the US allowed Japan to maintain its sovereignty.
Adolf Hitler wanted to expand Germany.
Raw material to avoid dependence upon the outside world.
Japan attacked Manchuria in 1931 and China in 1937. World War II started in 1939. If the question is "As World War II progressed, Japan's desire to expand its empire led to attacks on Manchuria and China", then the answer is false because Japan invaded China before the war started.
Japan had fought a war with Russia and had invaded Manchuria prior to the start of World War II.
Japan invaded Manchuria in 1931 - before the start of World War 2.
Japan had made territorial gains during the Sino-Japanese War of 1894 & the Russo-Japanese War of 1904-1905.
Japan did not start WW2, Germany did in 1939 when they invaded Poland. Japan only came into the war when they bombed Pearl Harbour in 1941