171207-N-NM917-088 YOKOSUKA, Japan (Dec. 7, 2017) - Operations Specialist 2nd Class Chris Nash, left, from Kauai, Hawaii, assiged to guided-missile destroyer USS Benfold (DDG 65), holds safety line during Search and Rescue (SAR) training with Afloat Training Group West Pac at Commander, Fleet Activities Yokosuka. SAR swimmers play a key role in personnel safety and mission readiness of U.S. Naval Operations. (U.S. Navy photo by Mass Communication Specialist 2nd Class Jordan Kirkjohnson/Released)