U.S. Marine Corps Sgt. Patricia A. Aliff, center, a Harrisburg, Va., native, and U.S. Marine Corps Sgt. Brenda E. Clayton, left, a Santa Barbara, Calif., native, drill instructors with P Company, 4th Recruit Training Battalion, Marine Corps Recruit Depot Parris Island, S.C., yell at U.S. Marine Corps Pvt. Olivia K. Downing, a Wilmington, N.C. native, and U.S. Marine Corps Pfc. William A. Crouch, a Raleigh, N.C., native, who have recently returned from boot camp, during an incentive training demonstration at an all-female pool function at the Smithfield Aquatic Center in Smithfield, N.C., Jan. 11, 2014. Female poolees from across North Carolina came together to run an initial strength test, consisting of flexed-arm hang, crunches, a one and a half mile run and learn what boot camp is all about from female drill instructors from Marine Corps Recruit Depot Parris Island, S.C. (U.S. Marine Corps photo by Sgt. Dwight A. Henderson/Released)