Operation Hurricane was the first test of a British atomic device.A plutonium implosion device was detonated on 3 October 1952 in Main Bay,Trimouille Island,in the Montebello Islands in WA.Afterwards,Britain became the third nuclear power,after the US and the Soviet Union.During WWII,Britain commenced a nuclear weapons project, code-named Tube Alloys,but the 1943 Quebec Agreement merged it with the American Manhattan Project. Several key British scientists worked on the Manhattan Project, but post WWII, the American government ended cooperation on nuclear weapons.In January 1947,a cabinet sub-committee decided to resume British efforts to build nuclear weapons in response to an apprehension of American isolationism and fears of Britain losing its great power status. The project was called High Explosive Research and was directed by Lord Portal, with William Penney in charge of bomb design.Leonard Tyte was the technical director.Implicit in the decision to develop atomic bombs was the need to test them.The preferred site was the Pacific Proving Grounds in the US-controlled Marshall Islands.As a fallback, sites in Canada and Australia were considered.The Admiralty suggested that the Montebello Islands might be suitable,so UK Prime Minister, Clement Attlee,sent a request to Australian PM, Robert Menzies.The Australian government formally agreed to the islands being used as a nuclear test site in May 1951.In February 1952, Winston Churchill,went ahead with the atomic bomb test.A small fleet was assembled for Operation Hurricane under the command of Rear Admiral A.D. Torlesse; it included the flagship escort carrier HMS Campania,and the LSTs Narvik,Zeebrugge,and Tracker.Atomic veterans were exposed to radiation while present in the site of nuclear explosion during active duty,and suffered from radiation-induced health issues e.g.cancer.They were forced to keep silent about their work and whereabouts,and fought in vain for compensation and recognition.Britain conducted more nuclear test programs in Australia at Emu Field and Maralinga in SA,and at Christmas Island. Indigenous peoples and the natural environment were severely impacted.