170405-N-DR308-092 MARSEILLE, France (April 5, 2017) Morris Williams, left, first engineer of the Spearhead-class expeditionary fast transport ship USNS Trenton (T-EPF-5), and Sergey Amosov, the ship's second engineer, check engine instrumentation during a routine maintenance inspection. Trenton is one of eight expeditionary fast transport ships in the Military Sealift Command’s inventory. (U.S. Navy photo by Matthew Montgomery/Released)