Sergeant Dereck Shockley, anti-tank guided missleman,

Sergeant Dereck Shockley, anti-tank guided missleman, Combined Anti-Armor Team 1, Weapons Company, Battalion Landing Team 3/5, 15th Marine Expeditionary Unit, poses for a photo in front of his vehicle aboard the USS Rushmore, Feb. 22. The 15th MEU is deployed as part of the Peleliu Amphibious Ready Group as a U.S. Central Command theater reserve force, providing support for maritime security operations and theater security cooperation efforts in the U.S. 5th Fleet area of responsibility. (U.S. Marine Corps photo by Cpl. Timothy R. Childers/ Released)