Key Dates and Events
September 1931Manchurian Incident
1932 More Assassinations; PM Inukai, last party PM assassinated
1933 Japan withdraws from the League of Nations
1934 Washington Naval Treaty System of 1922 declared unacceptable
Feb. 26, 1936 2-26 Incident, a nearly successful military coup d'etat by Young Officers
Nov. 25, 1936 Japan and Germany sign Anti-Comintern Pact to oppose USSR
July 7, 1937 "Marco Polo Bridge Incident" and beginning of the "China Incident," an undeclared war between Japan and China
July 31st Peking Falls
August 1937 Expansion of China War to Shanghai
Dec. 12, 1937 Japanese troops perpetrate the infamous "Rape of Nanking"
Jan. 16, 1938 "Aite ni sezu" Declaration by Konoe Cabinet--no longer recognizes Nationalist Govt of Jiang Kaishek
Nov. 1938 "New Order in East Asia" Proclaimed
May 1938 onwards indiscriminate bombing of Chinese capitol at Chungking
Late 1938 - early1939 "3 Alls" policy in N. China: burn all, kill all, steal all
Sept. 27, 1940: Conclusion of Tripartite Treaty with Germany and Italy
April 13, 1941: Signing of Japanese-Soviet Neutrality Treaty
July 28, 1941: Advancement into southern French Indochina
August 1941 Knone mewets Emperor who agrees to summit with FDR; US rejects
Oct. 18, 1941: Establishment of cabinet of Hideki Tojo after Konoe resigns
Tojo , Army's strongest advocate for war, felt Konoe lacked "firm beliefs and courage."
Nov. 8, 1941 Hirohito briefed on Pearl Harbor ; Nov. 15, shown full war plans
Nov. 27 Task Force w/ 6 carries leaves Japan for Hawaii
Dec. 1, 1941: Decision to wage war against United States, Britain and Netherlands made at Imperial Council meeting
Dec. 8, 1941: Attack on Pearl Harbor (Dec. 7 U.S. time)
June 7, 1942: Defeat at Battle of Midway
July 7, 1944: Fall of Saipan, Mass suicides
July 18, 1944: Resignation en masse of Tojo Cabinet
March 10, 1945: Major Tokyo air raids
April 1, 1945: U.S. forces land on Okinawa
May 7, 1945: Germany unconditionally surrenders
July 27, 1945: Allied Powers issue Potsdam Declaration
Aug. 6, 1945: Atomic bomb dropped on Hiroshima
Aug. 8, 1945: Soviet Union declares war against Japan
Aug. 9, 1945: Atomic bomb dropped on Nagasaki
Aug. 14, 1945: Imperial Council accepts Potsdam Declaration
Aug. 15, 1945: Emperor's surrender rescript broadcast