190515-N-SB587-1397 SOUTH CHINA SEA (May 15, 2019) Sailors aboard the Avenger-class mine countermeasure ship USS Pioneer (MCM 9) retrieve a fuel line during a replenishment-at-sea with the fleet replenishment oiler USNS Guadalupe (T-AO 200). Pioneer, part of Mine Countermeasures Squadron 7, is operating in the U.S. 7th Fleet area of operations to enhance interoperability with partners and serve as a ready-response platform for contingency operations. (U.S. Navy photo by Mass Communication Specialist 2nd Class Corbin J. Shea/Released)