A Royal Thai Marine, Jungle Survival Instructor, assigned to Reconnaissance Battalion, clenches the tail of a cobra snake between his teeth during jungle survival training. Poisonous snake recognition is part of the training conducted by Royal Thai Marines with US Marine Corps (USMC) Marines assigned to B/Company, 3rd Reconnaissance Battalion, and E/Company, 4th Reconnaissance Battalion, during survival training at Sattahip, Chonburi, Thailand, during Exercise COBRA GOLD 2003