Guerrilla warfare is a form of irregular warfare where a small group of armed troops will use millitary tactics such as ambushes, sabotage, raids, hit and run tactics, and extraordinary mobility to fight a larger and less mobile traditional army. Attrition warfare is a military strategy in which one side tries to win the war by wearing to the opposing side to the point of collapse and then finishing them off. Both of these military tactics were used in the Vietnam war. The North Vietnamese army also known as the Viet Cong used guerrilla warfare as their main tactic throughout the war. The Viet Cong would could tunnels to attack enemies from underground letting them ambush American Troops from behind. During the Vietnam war the United States used attrition warfare. The main tactic of the United States was to increase the body count of the North Vietnamese troops. Body count refers to the total number of people killed in a particular event. The United States tactic worked to their benefit because at the end of the Vietnam war it was reported that the North Vietnamese had lost almost one million troops while the United States had lost less then 60,000.