A UH-1N Huey helicopter from the 37th Helicopter Squadron at F.E. Warren Air Force Base, Wyo., prepares for takeoff from Ellsworth AFB, S.D., Dec. 7, 2017. Helicopter teams from F.E. Warren AFB trained with Ellsworth B-1 aircrews and the Joint Terminal Attack Controllers from the United Kingdom’s Royal Air Force, in an area of the Powder River Training Complex in western South Dakota, from Dec. 4 to 8, 2017. (U.S. Air Force photo by Airman 1st Class Donald C. Knechtel)