5 Jul 1939
- Carrier Hiryu was commissioned into service. ww2dbase [Hiryu | CPC]
- Georgy Zhukov's counterattack forced the northern prong of the Japanese offensive to retreat across river Khalkhin Gol in Mongolia Area of China. ww2dbase [Battle of Khalkhin Gol | Georgy Zhukov | Mongolia | CPC]
- The keel of the battleship USS South Dakota (BB-57) was laid down at the New York Shipbuilding Corporation shipyard in Camden, New Jersey, United States. ww2dbase [South Dakota | Camden, New Jersey | AC]

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"Goddam it, you'll never get the Purple Heart hiding in a foxhole! Follow me!"Captain Henry P. Jim Crowe, Guadalcanal, 13 Jan 1943
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