Troops from United States, Thailand and South Korea conducted a joint military drill on Friday (February 14) as part of the annual Cobra Gold exercise in eastern Chonburi province.<br/> <br />Around 300 military personnel from three countries took part in the amphibious exercise which aims to coordinate operations on both land and sea.<br/> <br />On Friday, troops were taken to the coast by 26 amphibious assault vehicles (AAV) and two helicopters.<br/> <br />The annual military drill is set to involve seven countries -- Thailand, United States, Japan, South Korea, Indonesia and Malaysia, and more than 20 observer countries.<br/> <br />The week-long joint military drill is aimed at attracting more participating countries in future.<br/> <br />A total of more than 14,000 servicemen from Asia Pacific countries is set to participate in the drill, which aims to enhance peace keeping operations.