Two A-10 Thunderbolts form up before a mission during NATO Operation Allied Force. Two U.S. Air Force A-10 Thunderbolts form up before dropping away from a tanker aircraft for a mission against targets in the Federal Republic of Yugoslavia on April 22, 1999, during NATO Operation Allied Force. The Thunderbolts, more commonly called Warthogs, and their crews are deployed to Aviano Air Base, Italy, from the 81st Fighter Squadron, Spangdahlem Air Base, Germany, in support of Allied Force. SHARE: Download: Full Size (0.09 MB) Credit: VIRIN: 371957-Q-ZRH44-025.jpg Photo Gallery