A recruit of Oscar Company, 4th Recruit Training Battalion,

A recruit of Oscar Company, 4th Recruit Training Battalion, does pushups during an incentive training session Jan. 26, 2016, on Parris Island, S.C. Drill instructors use incentive training to help instill discipline and motivation in recruits and is used to correct minor disciplinary infractions. Incentive training can consist of combinations of 13 different exercises given in high-intensity, short-duration intervals. Oscar Company is scheduled to graduate April 15, 2016. 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 13 weeks of rigorous, transformative training. Parris Island is home to entry-level enlisted training for 50 percent of male recruits and 100 percent of female recruits in the Marine Corps. (Photo by Lance Cpl. Aaron Bolser)