North Korea tells US they will use nuclear weapons first if there is threat of war
North Korean official says a 'pre-emptive nuclear strike is not something the US has a monopoly on'.
Poland, Lithuania and Estonia concerned as Russia deploys nuclear-capable missiles to Kaliningrad
Three Nato states have expressed their concern after Russia deployed the nuclear-capable Iskander missiles.
Russia suspends weapons-grade plutonium disposal deal with US amid sanctions
Vladimir Putin cited Washington's 'unfriendly actions' before halting the deal.
Is North Korea building its first ballistic missile submarine?
Reports follow North Korea's fifth and biggest nuclear detonation.
India vs Pakistan: How do the sub-continent's two nuclear powers shape up amidst Kashmir dispute?
India's military might dwarfs Pakistan, but the two are evenly matched on nuclear weapons.
China wants tougher sanctions against North Korea to spare ordinary citizens, researcher says
The 'red line' for the Chinese is that the North Korean regime shouldn't collapse, researcher says.
China's Communist mouthpiece accuses US of raising tensions in Korean peninsula
The paper says the US has no 'right' to advise China on restraining North Korea.
South Korea threatens to 'annihilate' Pyongyang if North Korea launches nuclear weapons
Seoul unveils massive retaliatory plan, after North conducts fifth nuclear test.
50 US nuclear weapons at Turkish base near Syrian border at risk of being stolen by terrorists
A Washington think-tank has said amid growing security instability in Turkey that US nukes may be at risk.
Japan remembers Hiroshima and urges world get ride of nuclear weapons
Hiroshima Mayor Kazumi Matsui urged world leaders to follow President Obama and visit Hiroshima.
Labour leadership: Owen Smith says he would push the nuclear button unlike Jeremy Corbyn
Former Campaign for Nuclear Disarmament activist makes explosive pledge on morning TV
Will Eagle or Smith bow out of Labour leadership race to allow single 'Stop Corbyn' candidate?
Former shadow cabinet ministers risk splitting the so-called Labour 'soft left' vote if they both run.
Labour leadership contest: Eagle and Smith close to making deal to take on Corbyn
Owen Smith is thought to have most support from Labour MPs determined to dump Corbyn.
British MPs vote overwhelmingly to renew Trident weapons system
The four replacement submarines are expected to cost taxpayers an estimated £31bn.
Trident: Theresa May prepared to authorise nuclear strike that could kill 100,000 people
MPs will vote on renewing Britain's nuclear capabilities at 10pm BST this evening.
Tom Watson warns pro-Corbyn trade unions of 'consequences'
Deputy leader says the chiefs of Unite and the GMB union could face a backlash over Trident.
Nuclear weapons are an archaic idea of a 'deterrent'
'Security' appears synonymous with a willingness to kill millions at the press of a button
Labour faces explosive split over Trident nuclear-system vote as Theresa May leads debate
Jeremy Corbyn will vote against renewal, with some of his MPs abstaining and others voting for it.
Not renewing Trident is a 'reckless gamble' that will 'embolden our enemies,' Theresa May will say
A Commons vote on the renewal of Britain's nuclear programme will take place today.
Russia building hypersonic stealth bomber than can launch nuclear bombs from space
PAK-DA strategic bomber's hypersonic engine works and prototypes could be in the air as soon as 2020.
Life onboard a Trident submarine as parliament prepares to vote on future of Britain's nuclear deterrent
Jeff J Mitchell photographs the crew onboard HMS Vigilant, one Britain's four Vanguard-class submarines.
British government will vote whether to replace Trident nuclear weapons on 18 July
David Cameron aims to capitalise on Labour's civil war to push renewal through.
I used to support the US-led nuclear deal with Iran – I was wrong
Iran's nuclear deal with the US and Europe has made the Middle East more divided, unstable and violent.
UK spending millions in secret to upgrade Trident nuclear warheads – report
Report claims £85m has already been spent on development of more powerful and precise nuclear weapons.
War on Isis: Threat of nuclear terror attack 'highest since the Cold War' says think tank
The International Luxembourg forum says Isis militants seek to carry out a nuclear attack in Europe.
Radiation levels on Bikini Island higher than expected 60 years after US nuclear tests
Latest scientific results, 60 years after US nuclear tests in the Marshall Islands.
Expectations high as Obama to become the first incumbent US president to visit Hiroshima
Obama is also set to deliver a message on the need to prevent the spread of nuclear weapons.
Vladimir Putin encouraged to launch nuclear strike on islands off the coast of Scotland
A Russian politician is demanding Putin drop a nuclear bomb off the Scottish coast in a display of Russian might.
China 'to deploy nuclear submarines in Pacific' amid US tensions
Move reportedly in response to Washington's plans to place anti-ballistic missile system in South Korea.
Obama visit to Hiroshima not to be considered an apology says White House
The US president is expected to speak about elimination of nuclear weapons during visit to the atom bomb site.