Timeline - Hirohito's War
| 1930 | January, June, November |
| 1931 | September |
| 1932 | May, October |
| 1933 | January - March |
| 1934 | July - October |
| 1935 | January - September |
| 1936 | February - December |
| 1937 | June - December |
| 1938 | January - November |
| 1939 | March - December |
| 1940 | March - December |
| 1941 | March - November |
| December | |
| 1942 | January |
| February | |
| March | |
| April - June | |
| July - September | |
| October - December | |
| 1943 | January - March |
| April - June | |
| July - September | |
| October - December | |
| 1944 | January - March |
| April - June | |
| July - September | |
| October - December | |
| 1945 | January - March |
| April - June | |
| July - October | |
PACIFIC WAR TIMELINE
1930
21 January: Great Britain: London Naval Conference convenes to renew limitations on naval warship building. 10: 10: 7 ratios agreed for US, Great Britain and Japan respectively compared to 5:5:3 eight year earlier at the Washington Conference. Settlement attacked by ultranationalists in Japan.
7 June: America: Smoot Hawley Tariff Act voted into law starts a global rush toward trade protection, which is later attributed with worsening the Global depression.
14 November: Japan: Prime Minister Hamaguchi shot by an ultranationalist as he enters Tokyo Station