U.S. Marine Corps Lance Cpl. Nicholas P. Marshall, an aircraft mechanic assigned to Marine Aviation Logistics Squadron 14, maintains his sector of fire during a force protection drill aboard the S.S. Wright in Baltimore, Md., July 18, 2014. The Marines conducted the drill to ensure they were ready in the event of a force protection mishap. (U.S. Marine Corps photo by Lance Cpl. James R. Skelton/Released)