Three U.S. Air Force A-10C Thunderbolt IIs fly in formation over Davis-Monthan Air Force Base, Ariz., August 4, 2015. Twelve A-10s and their pilots from the 354th Fighter Squadron returned after a 6-month-long deployment to Europe where they flew over 1,500 missions throughout 21 countries as part of the Theater Security Package to Europe in support of Operation Atlantic Resolve. (U.S. Air Force photo by Airman 1st Class Chris Drzazgowski/Released) 