Keywords: 120801-N-NL541-113 (7699077178).jpg U S Navy Boatswain's Mate 3rd Class Guanqun Sun serves as the landing signalman enlisted during the refueling and crew swap of an SH-60B Seahawk helicopter assigned to Helicopter Anti-Submarine Squadron Light HSL 48 aboard the guided missile frigate USS Underwood FFG 36 Aug 1 2012 in the Caribbean Sea Underwood was deployed in support of Southern Seas 2012 a U S Southern Command-directed operation designed to strengthen relationships with regional partner nations and improve operational readiness for all assigned units DoD photo by Mass Communication Specialist 2nd Class Stuart Phillips U S Navy/Released https //www flickr com/photos/39955793 N07/7699077178/ 120801-N-NL541-113 2012-08-01 10 11 https //www flickr com/people/39955793 N07 U S Department of Defense Current Photos PD-USGov U S Department of Defense Current Photos https //flickr com/photos/39955793 N07/7699077178 2016-09-03 10 31 08 United States Government Work Caribbean Sea United States Department of Defense |