MCAS YUMA, Ariz. -- U.S. Marines with Marine Operational Test and Evaluation Squadron (VMX) 1, conduct routine maintenance on a MV-22 Osprey on Marine Corps Air Station (MCAS) Yuma, June 18, 2020. VMX-1 is an operational test squadron that tests multiple aircraft, allowing the continuation of improving the safety, reliability, and lethality of Marine Corps aircraft. (U.S. Marine Corps photo by Lance Cpl John Hall)