What doesn’t kill you makes you stronger.

During last year’s Operation Cobra Gold 13, an international military training exercise hosted in Thailand, a group of U.S. Marines participated in one of Thailand’s deadliest traditions after learning how to capture and kill poisonous cobras in the jungle. They drank fresh cobra blood straight from the snake’s mouth.

At the same training event, the Marines learned how to decapitate chickens with their bare teeth. We don’t have a gnarly video for that, but these graphic pictures from the Daily Mail will suffice.