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.

Marines with Marine Wing Support Squadron 371, based out of Marine Corps Air Station Yuma, perform shooting drills with their M16A4 service rifles during a squadron field exercise at the U.S. Army Yuma Proving Ground training facility in Yuma, Ariz., Wednesday, March 9, 2016. - Marines with Marine Wing Support Squadron 371, based out of Marine Corps Air Station Yuma, perform shooting drills with their M16A4 service rifles during a squadron field exercise at the U.S. Army Yuma Proving Ground training facility in Yuma, Ariz., Wednesday, March 9, 2016.