170919-A-NY041-0073 PUERTO BARRIOS, Guatemala (Sept.

170919-A-NY041-0073 PUERTO BARRIOS, Guatemala (Sept. 19, 2017) U.S. Navy Lt. Bianca Chun, the senior medical officer and family medicine doctor at Naval Branch Health Clinic Naval Air Station Whiting Field, teaches infant CPR during a Basic Life Support course to Guatemalan sailors at Commando Naval del Caribe, a Guatemalan naval base, during a subject matter expert exchange in support of Southern Partnership Station 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. Army photo by SGT Crystal Madriz/Released)