The united kingdom could not withstand a single major explosion, and certainly not multiple attacks on British soil, he warned. Professor Futter described a horrific future in which, if nuclear deterrence failed, the United Kingdom would be “destroyed” as a “working state”. The United Kingdom remains committed to the ultimate goal of a world without nuclear weapons and supports the full implementation of the Treaty on the Non-Proliferation of Nuclear Weapons (NPT) in all its aspects. We have the smallest nuclear capacity of all recognized nuclear-weapon States that account for less than one percent of the global inventory.
In 1952, the United Kingdom became the third country (after the United States and the Soviet Union) to develop and test nuclear weapons, and it is one of five nuclear-weapon states under the Nuclear Non-Proliferation Treaty. These plans date back to the Cold War and will have changed considerably, but nuclear war expert Julie McDowall, host of the Atomic Hobo podcast, says the idea of dispersing small groups of ministers and staff would remain the surest way to ensure that some form of government can continue after an attack nuclear. The British government considered nuclear weapons to be a joint discovery, but the US Atomic Energy Act of 1946 (McMahon Act) restricted other countries, including the United Kingdom, access to nuclear weapons information. We have the smallest reserve of nuclear warheads in the five nuclear-weapon states (China, France, Russia, the United Kingdom and the United States), and we are the only ones that have been reduced to a single delivery system.
The NPT has played an unparalleled role in containing the nuclear arms race and in minimizing the spread of nuclear weapons. To help explain how some states are expanding their nuclear capabilities, NATO has prepared this graph that uses Russia's expanding arsenal as an example of this trend and compares it with the systems possessed by the United Kingdom and the nuclear-weapon states of NATO, France and the United States. Mr. Lucas says that Britain has a strong nuclear deterrent power, in addition to a very good chance that nuclear missiles will be intercepted with the help of the American “star wars” system.
Fears of a nuclear attack increased this week when Sergei Lavrov, Russia's foreign minister, said the risk of nuclear war is considerable, as the West continues to supply weapons to Ukrainian forces. The risk of nuclear conflict remains remote, but the threats facing the United Kingdom increase in scale, diversity and complexity. He said that they would be more likely to be smaller nuclear weapons known as tactical nuclear weapons, used within Ukraine.