MCAS YUMA, Ariz. -- U.S. Marines stationed at Marine Corps Air Station (MCAS) Yuma conduct sword manual and drill as part of their final examination for the Corporals Course curriculum on the MCAS Yuma Ramada field, Jan 27, 2020. Corporals Course is a leadership class designed to teach Marines the fundamentals that go in to being an effective noncomissioned officer. (U.S. Marine Corps photo by Lance Cpl John Hall)