381st explained

381st may refer to:

• 381st Bombardment Squadron, inactive United States Air Force unit
• 381st Fighter Squadron or 18th Reconnaissance Squadron, squadron of the United States Air Force
• 381st Intelligence Squadron, intelligence unit located at Joint Base Elmendorf-Richardson, Alaska
• 381st Training Group at Vandenberg AFB, California provides training for the nation's space and intercontinental ballistic missile (ICBM) operations

See also

• 381 (number)
• 381, the year 381 (CCCLXXXI) of the Julian calendar
• 381 BC