A U.S. Marine drinks the blood of a cobra during a jungle survival exercise at a military base in Chon Buri province

A U.S. Marine drinks the blood of a cobra during a jungle survival exercise with the Thai Navy as part of the «Cobra Gold 2013» joint military exercise, at a military base in Chon Buri province February 20, 2013. About 13,000 soldiers from seven countries, Thailand, U.S., Singapore, Indonesia, Japan, South Korea and Malaysia are participating in the 11-day military exercise. REUTERS/Damir Sagolj (THAILAND — Tags: MILITARY POLITICS SOCIETY TPX IMAGES OF THE DAY)