GEORGETOWN, Guyana (Sept. 18, 2021) The Spearhead-class expeditionary fast transport ship USNS Burlington (T-EPF 10) participates in a passing exercise (PASSEX) with the Guyana Coast Guard Metal Shark-class vessel Peregrine, Sept. 18, 2021. Burlington is deployed to the U.S. 4th Fleet area of operations to support expeditionary maintenance to deployed littoral combat ships operating in the region. (U.S. Navy photo by Intelligence Specialist 2nd Class Keith Macmurray)