the m72 light anti-armor weapon (law) is a small, lightweight rocket launcher used by the us military and other nato countries. it weighs only five-and-a-half pounds. it was so small that it only needed one person to use it, rather than two for the bazooka. it was used often during the vietnam war. the north vietnamese military and guerillas did not use tanks often since so much fighting was in the jungle, but the law was still useful for destroying bunkers and trenches.