181029-N-IO414-1021 GENKAI SEA (Oct. 29, 2018) Sailors prepare to lower a float during a mine sweeping training evolution aboard the Avenger-class mine countermeasures ship USS Chief (MCM 14), Oct. 29, 2018. Chief, part of Mine Countermeasures Squadron 7 and Amphibious Force 7th Fleet, is training to enhance its capabilities of finding, classifying and destroying moored and bottom mines. (U.S. Navy photo by Mass Communication Specialist 2nd Class Jordan Crouch/Released)