A Coast Guardsman with Port Security Unit 305 services an engine on a 32-foot Transportable Port Security Boat while deployed to Naval Station Guantanamo Bay, Cuba, July, 18, 2017. PSU 305 is deployed to Naval Station Guantanamo Bay supporting joint Department of Defense operations protecting the port and waterways around Guantanamo Bay. U.S. Coast Guard photo by Petty Officer 2nd Class Matthew S. Masaschi