180418-N-CF658-036 PACIFIC OCEAN (April 18, 2018) Lt. Chris Bohnker, assigned to Naval Operational Support Center (NOSC), Newport, R.I., attached to Surface and Mine Warfighting Development Center (SMWDC), collects data and mentors crew members during an anti-submarine exercise aboard the guided-missile destroyer USS Stockdale (DDG 106). Stockdale, the guided-missile cruiser USS Mobile Bay (CG 53) and USS Spruance (DDG 111) are cruiser and destroyer warships from the John C. Stennis Carrier Strike Group (CSG) completing a SMWDC-led cruiser and destroyer surface warfare advanced tactical training (SWATT) exercise. SWATTs are designed to increase warfighting proficiency, lethality, and interoperability of participating units. (U.S. Navy photo by Mass Communication Specialist 2nd Class Amanda A. Hayes/Released)