World War I breaks out between the Entente and the Central Powers
President Wilson intervenes on the side of the Entente; the Bolsheviks led by Lenin take power in Russia
World War I ends with Entente victory
President Wilson presses the 14-point peace plan on the Entente partners; the U.S. Senate rejects participation in the League of Nations
Japan invades China's northeastern provinces (Manchuria)
Japan and China go to war.
Germany and the Soviet Union sign nonaggression pact; Germany's invasion of Poland plunges Europe into war.
German invasion of France
Germany invades the Soviet Union; Japanese attack Pearl Harbor bringing the United States formally into World War II