Mineman Seaman Carlos Dominguez, from Elwood, Indiana, conducts maintenance on the AN/SQQ 32 Sonar inside the Avenger-class mine countermeasures ship USS Pioneer (MCM 9) as the ship completes a mine hunting training exercise. Pioneer, part of Mine Countermeasure 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 Joshua Mortensen)
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