1939 | |
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1940 | |
| | 10 Jul:
The Battle of Britain begins.FWR  |
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| | 26 Oct:
The P-51 Mustang takes its maiden flight with test pilot Vance Breese.MM DW |
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1941 | |
| | 30 Oct:
FDR approves $1 billion in Lend-Lease aid for the USSR.USState JVL |
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| | 7 Dec:
The forces of the Japanese Empire attack the U. S. Fleet while it lies at anchor at Pearl Harbor, Hawaii.USNavy NPS |
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| | 12 Dec:
Adolf Hitler personally orders the mass extermination of European Jews during a meeting of Nazi German regional governors in the chancellery.AH.dk SIMag |
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1942 | | 19 Feb:
President Roosevelt signs Executive Order 9066 resulting in the forcible internment of people of Japanese ancestry. USNA OurDocs |
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| | 18 Apr:
Lt. Col. Jimmy Doolittle leads an air raid against Tokyo and other Japanese cities in retaliation for the attack on Pearl Harbor.USNavy SIMag |
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| | 9 Sep:
A submarine-based Japanese seaplane fire bombs the Oregon forest.SitOS USDA |
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| | 21 Sep:
The B-29 Superfortress takes its maiden flight.AFHF MoF |
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1943 | | 19 Apr:
Jews in the Warsaw Ghetto begin uprising against the Nazis.USHMM JVL |
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1944 | | 6 Jun:
D-Day - allied forces begin the invasion of continental Europe.USArmy IWM |
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| | 20 Jul:
Hitler survives an assassination attempt.UoC JVL |
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| | 21 Oct:
The first individual kamikaze attack occurs when a Japanese plane attacks HMAS Australia off Leyte Island.RDunn NHSA |
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| | 25 Oct:
Kamikaze are used en masse for the first time against Allied forces in the Battle of Leyte Gulf.NNAM AFMag |
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| | 12 Nov:
Avro Lancasters of the British Royal Air Force sink the German battleship Tirpitz off Håkøya Island near Tromsø, Norway.KBismarck BCM |
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| | 16 Dec:
The Battle of the Bulge, a surprise offensive by the German Army pushes Allied forces back through Belgium and Luxembourg.USArmy PBS |
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1945 | | 1 May:
Adolf Hitler commits suicide.JVL tPCfM |
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| | 7 May:
Germany unconditionally surrenders, effectively ending World War II in Western Europe. Soviet surrender terms were signed the next day.DoD USHMM |
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| | 16 Jul:
"Trinity", the first atomic bomb, explodes in the early morning hours near Alamogordo.B B C DoE |
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