200301-N-BT681-1123 GULF OF THAILAND (March 1, 2020) The amphibious transport dock ship USS Green Bay (LPD 20) sails alongside the amphibious assault ship USS America (LHA 6) following a replenishment-at-sea with the dry cargo and ammunition ship USNS Cesar Chavez (T-AKE 14) and the fleet replenishment oiler USNS John Ericsson (T-AO 194), March 1, 2020. America Expeditionary Strike Group-31st Marine Expeditionary Unit is participating in Cobra Gold 20, the largest theater security cooperation exercise in the Indo-Pacific Region and an integral part of the U.S. commitment to strengthen engagement in the region. (U.S. Navy photo by Mass Communication Specialist Seaman Jonathan Berlier/Released)