The document summarizes key events in Japan, Russia, and Europe following World War 1. In Japan, the Meiji Restoration modernized the country under Western influence. Japan then grew increasingly militaristic and expansionist, annexing Korea in 1910 and invading Manchuria in 1931. In Russia, the Bolshevik Revolution overthrew the Czarist government in 1917 and established the Soviet Union under Lenin and later Stalin. In Europe, Germany struggled with political instability and hyperinflation under the Weimar Republic, while Britain and France also faced economic troubles in the postwar period. The U.S. emerged as a new global power.