160604-N-NY430-145 SASEBO, Japan (June 4, 2016) Sailors man the rails of Avenger-class mine countermeasures ship USS Pioneer (MCM 9) as the ship leaves a Commander, U.S. Fleet Activities Sasebo pier. Avenger-class ships are designed as mine sweepers/hunter-killers capable of finding, classifying and destroying moored and bottom mines. (U.S. Navy Photo by MC3 (SW/AW) Kristopher S. Haley/Released)