Krabi Krabong is the weapon art of Thailand. Krabi–krabong was developed by the ancient Thai warriors for fighting on the battlefield. It was likely used in conjunction with muay boran but whether the two arts were developed together or independently is uncertain. Early warfare in Indochina was mostly between rival kingdoms and were fought en masse. Individual fighters were armoured and carried rhino hide shields. The Burmese invasion of 1767 resulted in the loss of many historical records and cultural documents.