There were some large-scale battles during the Vietnam War however most of the fighting was guerilla warfare. This type of warfare is different from the large-scale battles fought between armies, like those in World War II.In guerilla warfare, small units fight limited battles against an enemy force, set up ambushes, make surprise attacks, and then retreat back into the countryside or blend into the local population. It also includes making it difficult for the enemy to operate by engaging in sabotage and harassing the enemy with lethal means such as land mines and booby traps. The communist troops more often engaged in guerilla warfare against the South Vietnamese and American troops.