Manchukuo and World War II.

Japan's occupation of Manchuria was a major factor leading to World War II. Japan was running out of land, had few valuable natural resources, and was politically unstable. These factors, along with many others, led Japan to become more aggressive, in order to take more land, and to be more jealous of the larger powers. This caused many problems, and would eventually lead to World War II.
Japan, in the early 1920s to 1930s, was a country filled with social discontent, economic struggles, and an unstable government. Because of this, the Japanese military launched a new phase of political e…