Japan leaves UN, conquers more of China in Second Sino-Japanese war and Rape of Nanking happens.
During WW2 Japan bombs Pearl Harbor (4/7/1941) ordered by Hideki Tojo and conquered lots of places in the pacific, Battle of Midway (6/1942), 2 atomic bombs (8/1942), and VJ-day (8/14) ceremony on Mighty Moe (9/2).
Japan’s constitution and politics changes with Douglas MacArthur.
Post-war (1950s) country is rebranded and economy booms.