Answer:
The major causes of World War II were numerous. They include the impact of the Treaty of Versailles following WWI, the worldwide economic depression, failure of appeasement, the rise of militarism in Germany and Japan, and the failure of the League of Nations. ... Then, on September 1, 1939, German troops invaded Poland.
Explanation:
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Answer:
Cause: Japanese attack on Pearl Harbor.
Effects: US joins British and fight against the Nazis
US starts mass production of devices.
They win the war
Explanation:
