Americans think of World War II as beginning on December 7, 1941, when Japanese carrier-based airplanes attacked Pearl Harbor. Europeans date it from September 1, 1939, and the blitzkrieg assault on Poland by Hitler’s Luftwaffe and Panzer divisions. Africans see an even earlier beginning, the invasion of Ethiopia by Mussolini in 1935. Yet Asians must trace the war’s beginnings all the way back to Japan’s first steps toward the military domination of East Asia—the occupation of Manchuria in 1931.

