A U.S. Marine with Alpha Company Headquarters and Support Battalion (HQSPTBN), Marine Corps Base Camp Lejeune (MCBCL), crunches during a Stamina Course aboard Stone Bay, Camp Lejeune, N.C., March 27, 2012. The Marines are competing in the Stamina Course as part of a Battalion challenge. (U.S. Marine Corps photo by Lance Cpl. Adrian J. Weekly/Released)