Airmen and Marines compete in combat fitness test
Senior Airman Devon Tanner, 56th Communications Squadron network infrastructure technician, throws a simulated grenade during a combat fitness test challenge at Luke Air Force Base, Ariz., Jan. 26, 2018. During the CFT, a Marine Corps physical fitness requirement, a simulated grenade was thrown into a pre-determined area in addition to other combat related tasks. The competition was held between Marines and Airmen to build esprit de corps among the two services. (U.S. Air Force photo/Staff Sgt. Jensen Stidham)