The guided-missile destroyer USS Mustin maneuvers alongside the dry cargo ship USNS Pecos to conduct a replenishment during Valiant Shield 2014 in the Pacific Ocean, Sept. 20, 2014. U.S. Navy surface combatants and Military Sealift Command fleet logistics ships, part of Commander, Task Force 73, conducted a simulated submarine threat exercise as part of Valiant Shield. U.S. Navy photo by Petty Officer 2nd Class Declan Barnes