U.S. Marines of the the 31st Marine Expeditionary Unit

U.S. Marines of the the 31st Marine Expeditionary Unit exit an Assault Amphibious Vehicle (AAV) during an amphibious assault rehearsal at Hat Yao Beach, Sattahip, Chon Buri, Kingdom of Thailand, Feb. 27, 2020. Exercise Cobra Gold 20, in its 39th iteration, is designed to advance regional security and ensure effective responses to regional crises by bringing together multinational forces to address shared goals and security commitments in the Indo-Asia-Pacific region.(U.S. Army photo by Sgt. Nicolas Cholula)