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I disagree. Quite a few British scientists worked on Project Manhattan. After WW2 the US decided to deny Britain access to the data it had helped generate. Britain had to develop its fission weapon on its own.No one is right or wrong or proper in getting it, if they want it get it by hook or by crook. Countries like UK got it for nothing from USA without any restrictions or BS international law crap.
- The MAUD Committee, established in 1940, investigated the possibility of using nuclear fission for a bomb. The committee's report, which included findings from scientists like Otto Frisch and Rudolf Peierls, concluded it was indeed feasible. This led to the Tube Alloys program to develop the technology.
- Collaboration with the US (1943-1946):
The UK initially held a lead in atomic bomb research, but after the US entered the war, the two countries agreed to collaborate on the Manhattan Project, with Britain playing a supporting role. The 1946 US Atomic Energy Act (McMahon Act) ended this cooperation, restricting the sharing of nuclear information.
- Independent Program (1947 onwards):
In 1947, the British government decided to pursue an independent nuclear weapons program.
- First Atomic Test (1952):
The UK successfully tested its first atomic bomb, codenamed "Hurricane," on October 3, 1952, at the Montebello Islands in Australia. This test made Britain the third nuclear power.
- Thermonuclear Weapon Development:
Following the US and Soviet development of the hydrogen bomb (much more powerful than the atomic bomb), the UK committed to developing its own thermonuclear weapon in 1954.
- Operation Grapple (1957-1958):
A series of tests, codenamed Operation Grapple, were conducted to develop the hydrogen bomb, with the first test in 1957.
- Modern Era:
Since the decommissioning of tactical nuclear weapons in 1998, the Trident missile system, launched from submarines, has been the UK's sole nuclear weapons system.