Besides the Japanese attack on Pearl Harbor, do you think any of the events above should have triggered the United States to go to war? If so, which one and why that one? If not, what should it take for the United States to go to war?
The relationship between Japan and the United States had soured in the years leading up to Pearl Harbor. This began with the Japanese invasion of Manchuria in 1931, an expansion throughout the Chinese mainland that led to the Second Sino-Japanese war between China and Japan in 1937.
