U.S. Army Chief Warrant Officer 2 Matthew Muntifering, a pilot assigned to the 214th Aviation Regiment, checks the engine of SHAPE 4, one of the two UH-60A Black Hawk helicopters formerly assigned to the Supreme Headquarters Allied Powers Europe Helicopter Flight Detachment that his unit now controls after the deactivation of the flight detachment on Chièvres Air Base, in Chièvres, Belgium, April 29, 2015. (U.S. Army photo by Visual Information Specialist Pierre-Etienne Courtejoie/Released)