| 释义 |
- See also
519th may refer to: - 519th Air Defense Group, disbanded United States Air Force organization
- 519th Fighter-Interceptor Squadron, inactive United States Air Force unit
- 519th Military Intelligence Battalion (United States), unit of the United States Army
See also- 519 (number)
- 519, the year 519 (DXIX) of the Julian calendar
- 519 BC
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