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The Latest Breaking News from Nuclear Weapon

LLMs used tactical nuclear weapons in 95% of AI war games, launched strategic strikes three times — researcher pitted GPT-5.2, Claude Sonnet 4, and Gemini 3 Flash against each other, with at least one model using a tactical nuke in 20 out of 21 matches

A researcher made three different AI LLMs the heads of state of nuclear-powered nations and made them face off with each other using historical scenarios. Out of the total of 21 matches, 20 ended with a tactical nuke detonation while three resulted in a full-on strategic nuclear exchange, essentially ending…

Tom’s Hardware

Russian intelligence claims UK and France plan to send nuclear arms to Ukraine, but offers no proof

As Ukraine marks four years since Moscow launched its full-scale invasion, Kyiv has shut down "absurd" claims by Russian intelligence that the UK and France will give it nuclear weapons.

Euronews

Moscow Alleges UK And France Are Preparing To Give Nuclear Weapons To Ukraine: Report

The Russian Intelligence Service (SVR) is claiming that the UK and France are preparing to give nuclear weapons to Ukraine as the invasion of Russia enters its fifth year.

Latin Times

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UK hits out at Putin’s ‘heinous’ acts in Ukraine after Russia’s nuclear claim

Downing Street flatly denied Moscow’s claim that the UK and France were working on providing Ukraine with a nuclear weapon.

Evening Standard

Iran’s president denies it seeks nuclear weapon and admits ‘shame’ after mass protests

Masoud Pezeshkian tries to convey message of national unity as negotiations with US hang in balance

The Guardian - UK

Should Iran's supreme leader Khamenei be worried? Donald Trump's response and a blunt warning

President Trump issued a stern warning to Iran against restarting its nuclear program, threatening severe consequences if new facilities are established. He claimed US strikes had previously destroyed targeted nuclear sites, preventing Iran from accessing them and asserting that the country was close to developing a nuclear weapon.

The Times of India

Expiry of nuclear weapons pact between US and Russia risks new arms race

Ending of New Start treaty will remove mutual limits on the world’s two biggest nuclear arsenals

The Guardian - UK

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Will Japan build nuclear weapons? Why China’s concerns are unfounded, for now

Tensions are growing in east Asia. The threat of a Chinese attack on Taiwan persists and, in recent weeks, North Korea has been testing its long-range missile capabilities. Russia’s reorientation of ties from Europe towards Asia is also accelerating and the America First rhetoric of Donald Trump is raising questions…

The Conversation

John Fetterman Supports Eventual Strikes Against Iran To 'Damage Or Destroy Their Nuclear Ambitions'

Democratic Sen. John Fetterman said he would support renewed strikes against Iran to prevent the country from developing a nuclear weapon.

Latin Times

Has Iran's Khamenei authorised small nuclear weapons? What we know so far

Speculation is mounting about whether Iran's supreme leader has approved nuclear weapons development after June's conflict with Israel devastated its nuclear programme. US intelligence says no.

Euronews

US submarines carrying nuclear weapons could dock in Australia despite ban, Senate told

Defence secretary appears to contradict previous assurances from Penny Wong that only conventionally armed submarines will visit Australian ports under Aukus deal

The Guardian - AU

Talk of new atomic tests by Trump and Putin should make UK rethink its role as a nuclear silo for the US

The Russian president, Vladimir Putin, has said that Russia may could carry out nuclear weapons tests for the first time since the cold war.

The Conversation

Pakistan hits back at Donald Trump after he accuses US ally of testing nuclear weapons

US president claims China, Russia, Pakistan and North Korea are all testing nuclear weapons

The Independent UK

Trump’s nuclear weapons tests won’t include explosions ‘right now,’ official says

Energy Secretary says administration will tests nuclear weapons ‘systems’ without detonating devices — for now

The Independent UK

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The Independent UK

Trump's testing plans for US nuclear weapons won't include explosions, energy secretary says

Energy Secretary Chris Wright says that new tests of the U.S. nuclear weapons system ordered up by President Donald Trump will not include nuclear explosions

The Independent UK

Trump push to test nuclear weapons will hit Americans with staggering price tag – just for a single detonation, experts say

Experts say reviving the long-dormant testing program could take at least a year and would cost astronomical amounts for each test

The Independent UK

Mushroom clouds over Vegas? What Trump’s nuclear weapons tests could mean for America and the world

Trump’s command risks a global arms race while the Doomsday clock ticks closer than ever to midnight, experts say

The Conversation

If the US resumes nuclear weapons testing, this would be extremely dangerous for humanity

US President Donald Trump has instructed the Pentagon to resume nuclear weapons testing immediately, “on an equal basis” with other countries’ testing programs.

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The Independent UK

Trump orders Pentagon to ‘immediately’ start testing nuclear weapons after three-decade embargo

The U.S. has followed a ‘voluntary moratorium’ on nuclear weapons testing since 1992

Evening Standard

Scottish independence a ‘win for Putin’, defence minister claims

The SNP has a long-standing opposition to nuclear weapons in an independent Scotland.

LiveScience

We could nuke 'city killer' asteroid 2024 YR4 before it hits the moon — if we act fast, new study warns

The potential 'city killer' asteroid 2024 YR4 has a small chance of hitting the moon in 2032. In a new paper, scientists probe the logistics of destroying it — possibly with nuclear weapons — before it comes too close.

The Independent UK

Workers who developed cancer while building America’s nuclear weapons struggle to make medical claims after Trump cuts

Unless the Trump administration chooses to renew the compensation program former nuclear weapons employees who are hoping to receive assistance with their medical payments will no longer have the opportunity.

International Business Times

European Powers Tell UN They Are Ready To Reimpose Iran Sanctions

Britain, France and Germany have told the United Nations they are ready to reimpose UN-mandated sanctions on Iran over its nuclear programme if no diplomatic solution is found by the end of August, according to a joint letter obtained by AFP. The letter to UN Secretary-General Antonio Guterres and the…

The Guardian - UK

James Cameron warns of ‘Terminator-style apocalypse’ if AI weaponised

Humans face three existential threats, from super-intelligence, nuclear weapons and the climate crisis, says blockbuster director as he announces new Hiroshima project

The Independent UK

Survivor of the Hiroshima bomb says Trump is ‘a huge mess’ as he gives stark warning to the world

‘Why do these animals called humans like war so much?’ asked Nobel Peace Prize winner and Hiroshima survivor Toshiyuki Mimaki, as he discussed the ongoing threat of nuclear weapons

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