Alert crews from the 126th Air Refueling Wing respond to the airplanes when the klaxon sounds as part of the 8010 nuclear exercise conducted on Scott Air Force Base, Ill., June 7, 2014. The 126th ARW, an Illinois Air National Guard unit stationed at Scott Air Force Base, Ill., supports USSTRATCOM's nuclear global strike and strategic deterrence missions through aerial refueling with the KC-135R Stratotanker to deter regional and strategic threats from adversaries with ground warfare capabilities. (Air National Guard photo by Senior Airman Elise Stout)