150511-N-IG780-144 CHORRERA, Panama (May 11, 2015) — Information Systems Technician Seaman Miguel Rivera, assigned to guided-missile frigate USS Kauffman (FFG 59), stacks boxes of medical supplies in Ciudad del Nino's medical clinic during a community relations event. Kauffman is currently underway in support of Operation Martillo, a joint operation with the U.S. Coast Guard and partner nations within the 4th Fleet area of responsibility. (U.S. Navy photo by Mass Communication Specialist 3rd Class Shane A. Jackson/Released)