171009-N-YM856-0022 PUERTO BARRIOS, Guatemala (Oct. 9, 2017) Equipment Operator 1st Class Gary Shepard, assigned to Naval Mobile Construction Battalion 1, marks a metal shaft during water well drilling operations, in support of Southern Partnership Station 17 (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)