190816-N-DZ642-1006 CARIBBEAN SEA (Aug. 16, 2019) Sailors sort mail aboard the hospital ship USNS Comfort (T-AH 20) after a replenishment at sea. Comfort is working with health and government partners in Central America, South America, and the Caribbean to provide care on the ship and at land-based medical sites, helping to relieve pressure on national medical systems strained by an increase in Venezuelan migrants. (U.S. Navy photo by Mass Communication Specialist 2nd Class Bobby J Siens/Released)