399th may refer to:
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399th Bombardment Group 399th may refer to:
* 399th Bombardment Group, inactive United States Air Force unit
* 399th Bombardment Squadron or 99th Air Refueling Squadron, part of the 6th Air Mobility Wing at Birmingham Air National Guard Base, Alabama
*399th Fighter Squadr ...
, inactive United States Air Force unit
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399th Bombardment Squadron or 99th Air Refueling Squadron, part of the 6th Air Mobility Wing at Birmingham Air National Guard Base, Alabama
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399th Fighter Squadron 399th may refer to:
* 399th Bombardment Group, inactive United States Air Force unit
* 399th Bombardment Squadron or 99th Air Refueling Squadron, part of the 6th Air Mobility Wing at Birmingham Air National Guard Base, Alabama
* 399th Fighter Squad ...
or 57th Weather Reconnaissance Squadron, inactive United States Air Force Reserve squadron
See also
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399 (number)
300 (three hundred) is the natural number following 299 (number), 299 and preceding #301, 301.
Mathematical properties
The number 300 is a triangular number and the sum of a pair of twin primes (149 + 151), as well as the sum of ten consecut ...
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399, the year 399 (CCCXCIX) of the Julian calendar
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399 BC
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