CARIBBEAN SEA (Aug. 21, 2021) Sailors assigned to the Spearhead-class expeditionary fast transport ship USNS Burlington (T-EPF 10) refuel a U.S. Army UH-60 Blackhawk helicopter on the flight deck, Aug. 21, 2021. Burlington is deployed to U.S. Naval Forces Southern Command/ U.S. 4th Fleet to support humanitarian assistance and disaster relief (HADR) efforts in Haiti following a 7.2-magnitude earthquake on Aug. 14, 2021. (U.S. Navy courtesy photo)