Pearl Harbor. The atomic bombs that we dropped on Japan was revenge for Pearl Harbor. We already had some issues with Japan but the surprise attack on Pearl Harbor was the main reason for the atomic bombs that President Truman dropped on Japan.
Northern states saw slavery as cruel and agianst humanity. Southern states saw slavery as the economic backbone of their economy and felt it was necessary.
D. Russia was not part of the Axis powers.
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D. Japan took over control of Manchuria from Russia