Which statements describe actions taken by Japan before the Pearl Harbor attack that resulted in strained relations with the United States?
1) Japan's invasion of Manchuria in 1931
2) Japan's withdrawal from the League of Nations in 1933
3) Japan's signing of the Tripartite Pact with Germany and Italy in 1940
4) Japan's bombing of the USS Panay in 1937
5) Japan's occupation of French Indochina in 1940
