British hydrogen bomb programme Atomic Energy Act of 1946 (also known as the McMahon Act) ended technical cooperation. Fearing a resurgence of American isolationism, and the loss of Britain's great power status, the British government resumed its own development effort, which was codenamed "High Explosive Research". The successful nuclear test of a British atomic bomb in Operation Hurricane in October 1952 represented an extraordinary scientific and technological achievement. Britain became the world's third nuclear power, reaffirming the country's status as a great power, but hopes that the United States would be sufficiently impressed to restore the nuclear Special Relationship were soon dashed. In November
Atomic veteran represented by Association Moruroa E Tatou. The organisation has been critical of the French government's initial denial of harm, and limited commitment to compensation to total value of $13.5 million. The president of Association Moruroa E Tatou estimates that between 15,000 and 30,000 people worked on the test program, but the official number remains a national secret. Australian servicemen supported British nuclear weapons test programs at Emu Field, Maralinga, the Montebello Islands and Christmas Island during period 1952-1963. Associations representing Australian atomic veterans include the Australian Nuclear Veterans Association. and the Australian Ex-Servicemen Atomic Survivors Association. The Clarke Review of