PACIFIC OCEAN (Sept. 26, 2016) -- Lt. Serg Samndzic and Lt. Aaron Jochimsen, Warfare Tactics Instructors (WTI) of the Naval Surface and Mine Warfighting Development Center (SMWDC) coordinate missile exercise rehearsals on the USS Princeton during an anti-submarine exercise in the Southern California operating area Sept. 26, 2016. Thirteen WTIs are underway with USS Nimitz Carrier Strike Group leading the Surface Warfare Advanced Tactical Training (SWATT). SWATT is a three-week exercise to tactically prepare cruisers and destroyers for carrier strike group integration. SMWDC opened June 9, 2015 at Naval Base San Diego and is responsible for increasing the tactical proficiency of the Navy's Surface warfare community through the creation of warfare doctrine, underway advanced-training exercises and warfare tactics instructors.(U.S. Navy photo by Petty Officer 1st Class Trevor Andersen/Released)