A U.S. Marine with Marine Wing Support Squadron 372, Marine Air Control Group 38, 3rd Marine Aircraft Wing, refuels an F-35B Lightning II assigned to Marine Fighter Attack Squadron (VMFA) 311during exercise Steel Knight 25 at Sacramento Mather Airport, California, Dec. 9, 2025. The forward node at Mather enabled aircraft to arm and refuel before launching a simulated Maritime Strike, demonstrating 3rd MAW’s ability to sustain fixed-wing operations from distributed locations. Steel Knight is an annual exercise that strengthens the Navy-Marine Corps team’s ability to respond forward, integrate across domains, and sustain Marine Air-Ground Task Force readiness. (U.S. Marine Corps photo by Sgt. Brian A. Stippey) - A U.S. Marine with Marine Wing Support Squadron 372, Marine Air Control Group 38, 3rd Marine Aircraft Wing, refuels an F-35B Lightning II assigned to Marine Fighter Attack Squadron (VMFA) 311during exercise Steel Knight 25 at Sacramento Mather Airport, California, Dec. 9, 2025. The forward node at Mather enabled aircraft to arm and refuel before launching a simulated Maritime Strike, demonstrating 3rd MAW’s ability to sustain fixed-wing operations from distributed locations. Steel Knight is an annual exercise that strengthens the Navy-Marine Corps team’s ability to respond forward, integrate across domains, and sustain Marine Air-Ground Task Force readiness. (U.S. Marine Corps photo by Sgt. Brian A. Stippey)