Operation Grapple Burgess and Donald Maclean in 1951. Fearing a resurgence of American isolationism and Britain losing its great power status, the British government restarted its own development effort, now codenamed High Explosive Research. The successful test of an 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 Special Relationship were soon dashed. In November 1952, the United States conducted Ivy Mike, the first successful test of a
Atomic Heritage Foundation local communities, and other organizations to urge Congress to establish a Manhattan Project National Historical Park. In March 2013, Senators Maria Cantwell and Lamar Alexander introduced S. 507 to create a park, and Representatives Doc Hastings, Ben Ray Lujan, and Chuck Fleischmann introduced a companion bill in the House, H.R. 1208. The Los Alamos, V-Site was the site of assembly for the Trinity device, the first atomic weapon ever detonated. In October 2006, the AHF co-hosted several days of events to commemorate the successful restoration of the High Bay building. The Atomic Heritage Foundation has created several museum exhibits. They