Pearl Harbor Timeline
1937 Japan invades China From the north, Japanese soldiers invaded China. 1939 World War II begins In 1939, World War II broke out, involving many nations including England, Germany, and Japan. When the conflict started, America chose not to participate. 1940 America boycotts Japan New trade restrictions were imposed by the United States, limiting Japan's ability to trade products. This was due to Japan's wartime activities. January 1941 Japan begins preparing an attack America had not yet entered WWII. Because of the trade embargoes, Japan chose to either intimidate the United States into removing the embargoes or drag the United States into the war. January 1941 Americans didn't believe it The Japanese communications regarding an assault on Pearl Harbor were intercepted by an American. No one believed him when he informed his bosses. July 1941 Japan continues their preparations Throughout the summer, Japanese soldiers prepared for the assault. September 1941 More messag