170831-N-YM856-027 CARIBBEAN SEA (Aug. 31, 2017) Civil service mariners assigned to the expeditionary fast transport USNS Spearhead (T-EPF 1) take part in a fire drill during Southern Partnership Station 2017 (SPS 17). SPS 17 is a U.S. Navy deployment executed by U.S. Naval Forces Southern Command/U.S. 4th Fleet, focused on subject matter expert exchanges with partner nation militaries and security forces in Central and South America. (U.S. Navy Combat Camera photo by Mass Communication Specialist 2nd Class Brittney Cannady/Released)