Military Sealift Command civil service mariner, David Prater, a third mate assigned to USS Mount Whitney (LCC 20), studies navigational charts while on watch, on the ship’s bridge. Mount Whitney is home-ported in Gaeta, Italy, and operates with a crew of U.S. sailors and Military Sealift Command civil service mariners. (U.S. Navy photo by Petty Officer 2nd Class Collin Turner)