U.S. Marines assigned to the Silent Drill Platoon practice a drill sequence in preparation for a performance at Marine Corps Air Station Yuma, Ariz., Feb. 28, 2012. (DoD photo by Cpl. Dengrier Baez, U.S. Marine Corps)
Drill Practice


U.S. Marines assigned to the Silent Drill Platoon practice a drill sequence in preparation for a performance at Marine Corps Air Station Yuma, Ariz., Feb. 28, 2012. (DoD photo by Cpl. Dengrier Baez, U.S. Marine Corps)