William Thomas Hallenback Jr., known as Thomas, was an American anti-nuclear activist and simple-living adherent who undertook a 27-year peace vigil – the longest recorded vigil in US history at the time, with the title passing to his co-protester Concepción Picciotto after Thomas' death – in front of the White House.
Thomas with his dog Sophie
Thomas started the White House Peace Vigil, the longest-running peace vigil in US history, in 1981.
Nuclear disarmament is the act of reducing or eliminating nuclear weapons. Its end state can also be a nuclear-weapons-free world, in which nuclear weapons are completely eliminated. The term denuclearization is also used to describe the process leading to complete nuclear disarmament.
The mushroom cloud over Hiroshima after the dropping of the atomic bomb nicknamed 'Little Boy' (Atomic bombings of Hiroshima and Nagasaki in 1945).
Mushroom-shaped cloud and water column from the underwater nuclear explosion of July 25, 1946, which was part of Operation Crossroads.
November 1951 nuclear test at the Nevada Test Site, from Operation Buster, with a yield of 21 kilotons. It was the first U.S. nuclear field exercise conducted on land; troops shown are 6 mi (9.7 km) from the blast.
1952 World Peace Council congress in East Berlin showing Picasso peace dove above the stage
