U.S. Marines stationed on Marine Corps Air Station (MCAS) Yuma, receive their COVID-19 vaccination on MCAS Yuma, Ariz., Feb. 16, 2021. Vaccines are being administered in phased approach, prioritizing healthcare workers and first responders, as well as mission critical and deploying personnel. The vaccine is voluntary and Marines are receiving it in order to keep the Corps mission ready. (U.S. Marine Corps photo by Lance Cpl John Hall) - U.S. Marines stationed on Marine Corps Air Station (MCAS) Yuma, receive their COVID-19 vaccination on MCAS Yuma, Ariz., Feb. 16, 2021.

U.S. Marines and Army SOF conduct barrel drops and tandem jumps out of a KC-130J at Yuma Proving Grounds on February 9, 2021. This training teaches them how to jump with personnel or equipment in order to expand their mission capabilities.(U.S. Marine Corps photo by LCpl. Gabrielle Sanders) - U.S. Marines and Army SOF conduct barrel drops and tandem jumps out of a KC-130J at Yuma Proving Grounds on February 9, 2021.

U.S. Marine Corps Sgt. Maj. Jason Davey, sergeant major of Marine Corps Air Station (MCAS) Yuma, receives the first dose of the COVID-19 vaccine aboard MCAS Yuma, Ariz., Feb. 5, 2021. Vaccines are being administered in phased approach, prioritizing healthcare workers and first responders, as well as mission critical and deploying personnel. The vaccine is voluntary and Marines are receiving it in order to keep the Corp mission ready. (U.S. Marine Corps photo by Cpl. Jason Monty) - U.S. Marine Corps Sgt. Maj. Jason Davey, sergeant major of Marine Corps Air Station (MCAS) Yuma, receives the first dose of the COVID-19 vaccine aboard MCAS Yuma, Ariz., Feb. 5, 2021.