U.S. Marines and Royal Thai Navy firefighters douse a fire inside the shell of an old airplane during a fire response scenario for exercise Cobra Gold 2015 on Utapao Royal Thai Navy Airfield, Kingdom of Thailand, Feb. 18, 2015. Exercise Cobra Gold is an annual exercise designed to increase cooperation, interoperability and collaboration among partner nations in order to achieve effective solutions to common challenges. U.S. Marines and Royal Thai Navy firefighters douse a fire inside the shell of an old airplane during a fire response scenario for exercise Cobra Gold 2015 on Utapao Royal Thai Navy Airfield, Kingdom of Thailand, Feb. 18, 2015. Exercise Cobra Gold is an annual exercise designed to increase cooperation, interoperability and collaboration among partner nations in order to achieve effective solutions to common challenges. SHARE: Download: Full Size (1.68 MB) Tags: photo essays Credit: VIRIN: 285600-G-NAN50-366.jpg Photo Gallery