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200228-N-RU810-1109 HAT YAO BEACH, Thailand (Feb. 28, 2020) 31st Marine Expeditionary Unit Marines embarked aboard the San-Antonio-class amphibious transport dock USS Green Bay (LPD 20) conduct amphibious exercises with the Royal Thai military in support of Cobra Gold 20, Feb. 28, 2020. America Expeditionary Strike Group-31st Marine Expeditionary Unit team are 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 3rd Class Vincent E. Zline/Released)