51st FW Mustang Immersion
U.S. Air Force Col. Ryan Ley, left, 51st Fighter Wing commander, receives a briefing from Master Sgt. Christian Arvelo, 51st Civil Engineer Squadron deputy fire chief, at Osan Air Base, Republic of Korea, July 8, 2025. The 51st CES is responsible for handling fire prevention, emergency management, structural operations, construction, and all engineering operations on base. (U.S. Air Force photo by Senior Airman Rome Bowermaster)