Republic of Korea and U.S. armed forces service members drive their assault amphibious vehicles through the water during the rehearsal for a combined amphibious landing demonstration conducted as part of Exercise Cobra Gold 2014 at Hat Yao beach, Rayong, Kingdom of Thailand, Feb. 13. Cobra Gold, in its 33rd iteration, demonstrates the U.S. and the Kingdom of Thailand's commitment to our long-standing alliance and regional partnership, prosperity and security in the Asia-Pacific region. (U.S. Marine Corps photo by Sgt. Matthew Troyer)