U.S. Marine Corps Sgt. Maj. Larry Buenafe prepares to pass the sword to Col. Bryon Sullivan during a change of command ceremony on Marine Corps Air Station Yuma, Ariz., June 15, 2021. The passing of the sword symbolizes the relief of duty from Sgt. Maj. Buenafe as Marine Operational Test and Evaluation Squadron 1 sergeant major by Sgt. Maj. Frank Gratacos. (U.S. Marine Corps photo by Lance Cpl. Gabrielle Sanders) - U.S. Marine Corps Sgt. Maj. Larry Buenafe prepares to pass the sword to Col. Bryon Sullivan during a change of command ceremony on Marine Corps Air Station Yuma, Ariz., June 15, 2021.

U.S. Marines with Marine Aviation Weapons and Tactics Squadron (MAWTS) 1 hike to an observation point during a live ordnance observation training in Yuma, Ariz., Aug. 28, 2020. The training was conducted with Marine Operational Test and Evaluation Squadron (VMX) 1 to allow Marines the opportunity to observe live fire and ordnance while out in the field. (U.S. Marine Corps photo by Lance Cpl. John Hall) - U.S. Marines with Marine Aviation Weapons and Tactics Squadron (MAWTS) 1 hike to an observation point during a live ordnance observation training in Yuma, Ariz., Aug. 28, 2020.

U.S. Marines Corps Cpl Kyle Sewer, left, and Cpl Reid Ellis Jr, MV-22 tiltrotor mechanics 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) - U.S. Marines Corps Cpl Kyle Sewer, left, and Cpl Reid Ellis Jr, MV-22 tiltrotor mechanics 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.

U.S. Marines with Marine Test and Evaluation Squadron (VMX) 1 conduct aerial training in a UH-1Y over the Sonoran Desert, Az., on Nov. 15, 2019. VMX-1 is an operational test squadron that tests multiple aircraft to allow the continuation of improving the safety, reliability, and lethality of the aircraft. (U.S. Marine Corps photo by Lance Cpl John Hall) - U.S. Marines with Marine Test and Evaluation Squadron (VMX) 1 conduct aerial training in a UH-1Y over the Sonoran Desert, Az., on Nov. 15, 2019.