Nuclear technology the element plutonium possesses an isotope that is sufficiently unstable for this process to be usable. Terrestrial plutonium does not currently occur naturally in sufficient quantities for such use, so it must be manufactured in a nuclear reactor. Ultimately, the Manhattan Project manufactured nuclear weapons based on each of these elements. They detonated the first nuclear weapon in a test code-named "Trinity", near Alamogordo, New Mexico, on July 16, 1945. The test was conducted to ensure that the implosion method of detonation would work, which it did. A uranium bomb, Little Boy, was dropped on the Japanese city Hiroshima on
Soviet atomic bomb project control of the atomic bomb project by establishing a special committee to oversee the development of nuclear weapons as soon as possible. On 9 April 1946, the Council of Ministers created KB–11 ('Design Bureau-11) that worked towards mapping the first nuclear weapon design, primarily based on American approach and detonated with weapon-grade plutonium. From this point, the work on the program was carried out quickly, resulting in the first nuclear reactor near Moscow on 25 October 1946. From 1941–46, the Soviet Union's Ministry of Foreign Affairs handled the logistics of the atomic bomb project, with Foreign Minister Vyacheslav Molotov controlling