The UK’s nuclear deterrent is expected to be dismantled by 2020 and replaced by a new fleet of ships, submarines and submarines’ subs.
The government is set to announce that the new fleet will be ready to deploy by 2020.
But there are concerns that the current fleet will have to be replaced by new vessels and submarines by the time the UK leaves the EU in 2019.
This means the UK will have been out of nuclear weapons for almost a decade, with only about half of the country’s remaining warheads still in place by the year 2020.
What happens if the UK is not a nuclear power by 2020?
What happens to the UK?
The government’s decision to dismantle the Trident fleet will allow the UK to withdraw from the nuclear triad, meaning the UK no longer has a nuclear deterrent and can now use other nuclear weapons.
The UK would then be able to pursue other defence capabilities, including nuclear deterrence.
But the decision will also mean that the UK has been out for about half a century of nuclear capability.
The nuclear triads have been in place since the 1970s and the British government has used the deterrents to deter adversaries and protect allies since then.
What would happen to Trident?
The UK government has previously said that the nuclear deterrent would be replaced with new submarines, but this would take more than a decade to complete.
The United States, Russia and Britain have said that a new submarine fleet is required before the UK could be “free of nuclear armaments”.
What about other parts of the UK that would be out of the nuclear arsenal?
In 2019, the government is due to announce its decision to phase out Trident.
However, in 2017, the British Government confirmed that some of the military equipment on which Trident has been based would not be decommissioned.
In other areas of the armed forces, such as the Royal Navy, Royal Air Force and Royal Marines, it is unclear how the decommissioning would proceed.
What about the Royal Marines?
The Royal Marines have a large fleet of submarines and cruisers and will continue to have the capability to operate in the Mediterranean and the South Atlantic.
However in 2019, it was also announced that Royal Marines would not have the nuclear weapons that were originally part of their Trident fleet.
The Royal Navy’s decision on the future of Trident has already been delayed several times and is expected before the end of the year.
What is the UK government’s timetable for decommissionment?
The British government will be able, at a later date, to decommission the Trident nuclear warheads.
The decision to decompose the warheads has been delayed by more than two years because of concerns about the long-term health of the weapons, but the government hopes to finish the job by 2020, when Britain will leave the EU.
However if the government fails to complete the task, it will have a legal obligation to carry out a nuclear disarmament treaty with the other nuclear powers and will be legally responsible for its nuclear weapons legacy.
The process of dismantling the nuclear warheads was previously undertaken by a joint team led by the UK, the United States and France.
The team was led by former Defence Secretary Sir Michael Fallon.
What are the benefits of a nuclear-free world?
The decision will mean that Britain has been in the nuclear arms race for decades, and Britain has always maintained that nuclear weapons do not serve our national security interests.
A nuclear-less world would mean that there would be less pressure on the armed services and fewer problems, for example when a country like North Korea decides to build nuclear weapons, because there would not need to be a global response to deter it.
What do other countries think of the plan?
In July, Prime Minister Boris Johnson announced that Britain would be withdrawing from the triad.
“Britain has always been an internationalist country and we will continue our global role in the world,” he said at the time.
“We will be putting the interests of our nation and its people first, and the security of our country first.
We will not be bound by the rules that the United Nations and other nations have set up and will have our own unique and unique security arrangements.”
What are other countries’ reactions to the plan for a nuclear free world?
Britain is one of the most influential countries in the international nuclear security community and the only one of a handful that has never had nuclear weapons deployed.
The other five countries that have nuclear weapons are Russia, France, India, China and Pakistan.
However the UK and the US, which has a greater military presence in Europe, have not always been so keen on the prospect of nuclear disarmaments.
However other countries, including Japan, South Korea and Japan, have expressed support for the plan.
What other countries have decided to leave the triads?
Some countries have said they would leave the nuclear armament and other parts that were part of the triples.
However many other countries would be happy to remain part of a more modern, peaceful nuclear triada.