Weather Underground was an American communist terrorist group that existed from 1969 to 1977, essentially consisting of militant left-wing students who opposed the Vietnam War and what they saw as "American imperialism". The gang launched a bombing campaign targeting banks and government buildings, but nobody was killed during this campaign; three of their own members were killed when one of their bombs prematurely exploded in their Greenwich Village, New York City townhouse on 6 March 1970. On 1 March 1971, the group bombed the US Capitol building in response to American incursions into Laos, followed by the 19 May 1972 bombing of the Pentagon in response to the bombing of Hanoi and the 29 January 1975 Department of State building bombing in response to the renewal of the war in Vietnam. The group, self-described as a "white fighting force" allied to the black liberation movement, disintegrated along with the New Left after the end of the Vietnam War, and it was defunct by 1977.