U.S. Air Force Airman 1st Class Austin Hall, 355th Aircraft Maintenance Squadron crew chief from Davis-Monthan Air Force Base, Ariz., marshals an A-10 Thunderbolt II during Red Flag-Alaska 14-1 May 20, 2014, Eielson Air Force Base, Alaska. A-10s are simple, effective and survivable twin-engine jet aircraft that can be used against all ground targets, including tanks and other armored vehicles.