ABSTRACT
The United States opened the nuclear weapons era on 16 July 1945, when it tested the first plutonium device at Alamogordo, New Mexico. On 6 August 1945 it demonstrated the first uranium weapon, with which it destroyed Hiroshima.
The United States opened the nuclear weapons era on 16 July 1945, when it tested the first plutonium device at Alamogordo, New Mexico. On 6 August 1945 it demonstrated the first uranium weapon, with which it destroyed Hiroshima.