Rear Adm. Sinclair Harris, commander, U.S. Naval Forces Southern Command/U.S. 4th Fleet, sits on the bridge of the Military Sealift Command joint high-speed vessel USNS Spearhead (JHSV-1). Harris was given the tour by Capt. Douglas D. Casavant Jr., U.S. Merchant Marine, master of Spearhead. Spearhead is a versatile, non-combatant, transport ship that will be used for fast intra-theater transportation of troops, military vehicles and equipment. Naval Station Mayport was just the second port visited by the ship. (U.S. Navy photo by Mass Communication Specialist 1st Class Sean Allen)