Cobra Gold Marines operate assault amphibious vehicles during a rehearsal exercise in the Gulf of Thailand, Feb. 27, 2020, as part of Cobra Gold, the largest theater security cooperation exercise in the Indo-Pacific region. SHARE IMAGE: Download Image: Full Size (1.26 MB) Tags: Navy Photo By: Navy Petty Officer 3rd Class Maria Llanos VIRIN: 200227-N-XL376-1082M.JPG Photo Gallery