170912-N-YM856-0085 PUERTO BARRIOS, Guatemala (Sept. 12, 2017) Builder 3rd Class Herman Sebert, assigned to Naval Mobile Construction Battalion (NMCB) 1, levels a straight line before concrete sidewalk construction begins at the Southern Partnership Station (SPS) 17 tent camp. 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 photo by Mass Communication Specialist 2nd Class Brittney Cannady/Released)