Coast Guardsmen from Port Security Unit 305 aboard a 32-foot Transportable Port Security Boat escort the Coast Guard Cutter Mohawk as the cutter prepares to moor in Naval Station Guantanamo Bay, Cuba, Sunday, July, 16, 2017. Coast Guard PSUs conduct critical missions to protect ports and waterways within the U.S., and they support expeditionary operations overseas. U.S. Coast Guard photo by Petty Officer 2nd Class Matthew