29 April 2022 U.S. 4th Fleet and USNS Burlington Conduct Fleet Experimentation in Key West ATLANTIC OCEAN - The Spearhead-class expeditionary fast transport vessel USNS Burlington (T-EPF-10) completed U.S. Naval Forces Southern Command/U.S. 4th Fleet 2022 Fleet Experimentation events in Key West, Fla. April 22-27, 2022...