U.S. Marines at Marine Corps Air Station (MCAS) Yuma conduct a ceremony celebrating the Marine Corps’ 246th birthday at MCAS Yuma, Ariz., Nov. 10, 2021. The annual ceremony signified the passing of traditions from one generation to the next. (U.S. Marine Corps photo by Sgt. Jason Monty) - U.S. Marines at Marine Corps Air Station (MCAS) Yuma conduct a ceremony celebrating the Marine Corps’ 246th birthday at MCAS Yuma, Ariz., Nov. 10, 2021.

U.S. Marine Corps Sgt. Maj. Luis A. Galvez, sergeant major, Headquarters and Headquarters Squadron (H&HS), speaks to Marines after a unit run at Marine Corps Air Station Yuma, Ariz., Nov. 9, 2021. The run was in celebration of the 246th Marine Corps birthday and was intended to strengthen esprit de corps and camaraderie amongst Marines and Sailors of H&HS. (U.S. Marine Corps photo by Sgt. Jason Monty) - U.S. Marine Corps Sgt. Maj. Luis A. Galvez, sergeant major, Headquarters and Headquarters Squadron (H&HS), speaks to Marines after a unit run at Marine Corps Air Station Yuma, Ariz., Nov. 9, 2021. The run was in celebration of the 246th Marine Corps birthday and was intended to strengthen esprit de corps and camaraderie amongst Marines and Sailors of H&HS. (U.S. Marine Corps photo by Sgt. Jason Monty)

U.S. Marine Corps Sgt. Maj. Luis A. Galvez (right), offgoing sergeant major, and Sgt. Maj. Hector A. Hernandez, oncoming sergeant major, Headquarters and Headquarters Squadron (H&HS), pose for a photo at Marine Corps Air Station (MCAS) Yuma, Ariz., Nov. 9, 2021. Galvez was the sergeant major for H&HS since June 7, 2019 and is heading to Recruiting Station Milwaukee, Wisconsin. (U.S. Marine Corps photo by Sgt Jason Monty) - U.S. Marine Corps Sgt. Maj. Luis A. Galvez (right), offgoing sergeant major, and Sgt. Maj. Hector A. Hernandez, oncoming sergeant major, Headquarters and Headquarters Squadron (H&HS), pose for a photo at Marine Corps Air Station (MCAS) Yuma, Ariz., Nov. 9, 2021.

The U.S. Operational Test Team has a new commander. Marine LtCol Dave Merritt became the first commanding officer of the UOTT. - The U.S. Operational Test Team has a new commander. Marine LtCol Dave Merritt became the first commanding officer of the UOTT.

Fire Fighters with Marine Corps Air Station (MCAS) Yuma, Ariz. neutralize a simulated gas leak during exercise Desert Plume, Nov. 2, 2021. Desert Plume is a training event that evaluates MCAS Yuma’s ability to respond to a CBRNE/HAZMAT incident quickly and efficiently. (U.S. Marine Corps photo by Cpl. Gabrielle Sanders) - Fire Fighters with Marine Corps Air Station (MCAS) Yuma, Ariz. neutralize a simulated gas leak during exercise Desert Plume, Nov. 2, 2021.

A child collects candy during the 7th Annual Red Ribbon Trunk or Treat at Marine Corps Air Station Yuma, Ariz., Oct. 28, 2021. The event created a fun and safe environment for Marines and their families to celebrate Halloween while promoting a drug free Marine Corps. (U.S. Marine Corps photo by Cpl. Gabrielle Sanders) - A child collects candy during the 7th Annual Red Ribbon Trunk or Treat at Marine Corps Air Station Yuma, Ariz., Oct. 28, 2021.

Marine Fighter Attack Squadron (VMFA) 225 conducts their first flight operations in an F-35B Lightning II on Marine Corps Air Station Yuma, Ariz., September 25, 2021. VMFA-225 participated in their first flight as an F-35B squadron. This marked the end of the first phase in the transition from a legacy F/A-18D Hornet squadron to an F-35B squadron. (U.S. Marine Corps Photo by Lance Cpl. Matthew Romonoyske-Bean) - Marine Fighter Attack Squadron (VMFA) 225 conducts their first flight operations in an F-35B Lightning II on Marine Corps Air Station Yuma, Ariz., September 25, 2021. VMFA-225 participated in their first flight as an F-35B squadron.

U.S. Marines from Headquarters and Headquarters Squadron (H&HS) participate in a squadron wide physical training (PT) event on Marine Corps Air Station Yuma, Ariz., July 30, 2021. H&HS holds monthly PT events to build comradery among the sections . (U.S. Marine Corps photo by LCpl. Matthew Romonoyske-Bean) - U.S. Marines from Headquarters and Headquarters Squadron (H&HS) participate in a squadron wide physical training (PT) event on Marine Corps Air Station Yuma, Ariz., July 30, 2021.

A U.S. Marine with the Provost Marshal Office apprehends a suspect during oleoresin capsicum spray training on Marine Corps Air Station Yuma, Ariz., July 30, 2021. After being sprayed, Marines were required to go through a series of obstacles in order to complete the course. (U.S. Marine Corps photo by Lance Cpl. Matthew Romonoyske-Bean) - A U.S. Marine with the Provost Marshal Office apprehends a suspect during oleoresin capsicum spray training on Marine Corps Air Station Yuma, Ariz., July 30, 2021.