Trenches - Military art of the Vietnamese army

Trenches - Military art of the Vietnamese army Trenches - trenches are a type of defense used to protect "stationary objects", usually used for defense, never used in battle for the purpose of attack. But in the Dien Bien Phu campaign under the command of General Vo Nguyen Giap, our troops applied it in a different, creative way, turning trenches into a moving weapon to serve the attack.