U.S. Marine Corps Lt. Col. Andrew Christ, an F-35B Lightning II pilot with Marine Operational Test and Evaluation Squadron (VMX) 1, gives the go ahead to start refueling at the arming and refueling point set up by Marine Wing Support Squadron 372 during exercise Steel Knight 23, on Marine Corps Base Camp Pendleton, California, Dec. 8, 2022. VMX-1 demonstrated F-35B expeditionary advanced base capabilities through landings and take-offs at an austere airfield. Exercise Steel Knight 23 provides 3rd Marine Aircraft Wing an opportunity to refine Wing-level warfighting in support of I Marine Expedi

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