| | | Yesterday, December 7, 1941 - a date which will live in infamy - The United States of America was suddenly and deliberately attacked by naval and air forces of the Empire of Japan.
President F.D. Roosevelt 8th December 1941 | | | | | | | General George Marshall | | Admiral Wilhelm Canaris |
| | American Mk.I 'Little-Boy' A-Bomb | | Little Boy as a gun-type device in which two masses of Uranium 235 were brought together to create the explosive critical mass. Fusing was by means of modified AN/APS-13 tail-warning radar sets, the device being detonated approximately 1,900ft above the target. |
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