A U.S. Air Force A-10C Thunderbolt II from the 47th Expeditionary Fighter Squadron goes through post-flight procedures on Feb 16 at Bagram Air Field, Afghanistan. The distinctive gun on the A-10C, the 30mm GAU-8 heavy rotary canon, is one of the heaviest and most powerful in the U.S. Military. U.S. Air Force photo/Tech. Sgt. Matt Hecht