North Vietnamese troops used the jungle to hide from American troops. The Americans developed a plan called Operation Rolling Thunder. “Operation Rolling Thunder launches more than 100 American fighter-bombers against targets in North Vietnam. Scheduled to last eight weeks, Rolling Thunder will last three years. (""The History Place - Vietnam War 1965-1968") In 1965, Viet Cong terrorists bombed the American embassy in Saigon to weaken their government in the country. North Vietnamese troops used tunnels or caves to get to battle sites more quickly. The Americans dropped napalm to burn the jungle the North was hiding in and kill them. They also dropped napalm on the North's food to starve them. used by the North, it was one of the best tactics to achieve this.