Staff Sgt. Mayra Moreno, a Parris Island drillmaster, evaluates Platoon 1021, Charlie Company, 1st Recruit Training Battalion, during a final drill evaluation Feb. 25, 2015, on Parris Island, S.C. Drillmasters, experts on the Marine Corps Drill and Ceremonies Manual, grade each platoon and its drill instructor. Moreno, 31, is from Huntington Beach, Calif. Charlie Company is scheduled to graduate March 6, 2015. Parris Island has been the site of Marine Corps recruit training since Nov. 1, 1915. Today, approximately 20,000 recruits come to Parris Island annually for the chance to become United States Marines by enduring 13 weeks of rigorous, transformative training. Parris Island is home to entry-level enlisted training for 50 percent of males and 100 percent of females in the Marine Corps. (Photo by Pfc. Vanessa Austin)