U.S. Marines place 20mm rounds in a hole at a demolition range to safely dispose of the unusable ammunition during bilateral training with Royal Thai Air Force explosive ordnance disposal technicians Feb. 20 at Wing One RTAF base, Nakhon Ratchasima, Kingdom of Thailand, during Cobra Gold 2013. Exercises like CG 13 allow Thailand and the United States to work together in areas of common interest for the betterment of regional security. The Marines are with Marine Aircraft Group 36, 1st Marine Aircraft Wing, III Marine Expeditionary Force.