USS Princeton (CG 59) launches an SM-2 missile during a live missile fire event as part of an exercise in the Southern California operating area Sept. 29, 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 Combat Camera photo by Petty Officer 1st Class Trevor Andersen/Released)