Service members from the U.S., Thailand, and Malaysia guard the processing center for a noncombatant evacuation operation, as part of Cobra Gold 17 at Naval Airbase Utapao, Thailand, Feb. 19, 2017. The drill was conducted to exercise joint, multinational cooperation during disaster relief. Cobra Gold is the largest Theater Security Cooperation exercise in the Indo-Asia-Pacific region and is an integral part of the U.S. commitment to strengthen engagement in the region. U.S., Thai, Malaysian and Japanese forces participated in the disaster relief drill. - Service members from the U.S., Thailand, and Malaysia guard the processing center for a noncombatant evacuation operation, as part of Cobra Gold 17 at Naval Airbase Utapao, Thailand, Feb. 19, 2017. The drill was conducted to exercise joint, multinational cooperation during disaster relief. Cobra Gold is the largest Theater Security Cooperation exercise in the Indo-Asia-Pacific region and is an integral part of the U.S. commitment to strengthen engagement in the region. U.S., Thai, Malaysian and Japanese forces participated in the disaster relief drill.