210709-F-ZR251-1623
A U.S. Air Force F-16 Fighting Falcon assigned to the 555th Fighter Squadron, taxis off the flightline at Graf Ignatievo Air Base, Bulgaria, July 9, 2021. Eight F-16s from the 555th FS are participating in Thracian Star 21, a multilateral training opportunity to test the squadron’s ability to rapidly forward deploy, sustain operations, and work in coordination with our partners and allies. (U.S. Air Force photo by Airman 1st Class Brooke Moeder)