U.S. Navy photo by Petty Officer 2nd Class David Bauer, left, and U.S. Navy Petty Officer 1st Class Neal Lelievre place an unmanned, underwater vehicle into the water to begin its mission during Exercise Clear Horizon 2015 on Commander Fleet Activities Chinhae, South Korea, Nov. 5, 2015. Bauer, a hospital corpsman, and Lelievre, a mineman, are assigned to Mobile Unit 1. U.S. Navy photo by Petty Officer 2nd Class Daniel Rolston