U.S. Marine Corps Sgt. Tyler Illian, a field training

U.S. Marine Corps Sgt. Tyler Illian, a field training instructor with Weapons and Field Training Battalion, demonstrates how to properly tie and tighten a rope harness Aug. 1, 2017, to recruits of Charlie Company, 1st Recruit Training Battalion, and Oscar Company, 4th Recruit Training Battalion, on Parris Island, S.C. Illian, 26, is from Pensacola, Fla. Both companies are scheduled to graduate Sept. 22, 2017. Parris Island has been the site of Marine Corps recruit training since Nov. 1, 1915. Today, approximately 19,000 recruits come to Parris Island annually for the chance to become United States Marines by enduring 12 weeks of rigorous, transformative training. Parris Island is home to entry-level enlisted training for approximately 49 percent of male recruits and 100 percent of female recruits in the Marine Corps. (U.S. Marine Corps photo by Lance Cpl. Maximiliano Bavastro)