JOINT BASE LANGLEY-EUSTIS, Va. – U.S. Air Force Airmen disassemble their M-4 carbine rifles during their Combat Arms Training and Maintenance qualification course at Joint Base Langley-Eustis, Virginia, Nov. 30, 2022. CATM qualifications are mandatory for deployments or to have a permanent change of station in certain situations. (U.S. Air Force photo by Airman 1st Class Olivia Bithell)