Combat Arms Security Forces Airmen teaches Airman how to aim the grenade laucncher attachment at Ellsworth Air Force Base, S.D., Feb. 4, 2020. Combat Arms instructors teach Security Forces Augmentee Airmen, Combat Arms Airmen, deploying Airmen, Permanent Change of Station and Air and Space Expeditionary Force individiuals who need to qualify on specific weapons systems. (U.S. Air Force photo by Airman Quentin K. Marx)