CAMP SHELBY, Miss. (Feb. 20, 2013) Seabees assigned to Naval Mobile Construction Battalion (NMCB) 15 man a fighting position during their final evaluation problem before deployment. NMCB-15 is mobilized supporting Operation Enduring Freedom and is an expeditionary element of U.S. Naval Forces that act as combat engineers and support various units worldwide through national force readiness, humanitarian assistance, and building and maintaining infrastructure. (U.S. Navy photo by Mass Communication Specialist 2nd Class Daniel Garas)