One of the countries, however, denies that the U.S. was even involved in negotiationg a ceasefire.
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Donald Trump has issued a fresh warning on nuclear weapons, coupling it with sweeping claims about his role in averting global conflict. The remarks revive debates over past ceasefires and the future of arms control.
Posting online, the U.S. president framed the moment as a test of military strength and diplomacy, while challenging rivals and allies alike.
Bold nuclear claims
In a message on his Truth Social platform, Trump claimed he had personally prevented three nuclear wars.
He wrote: “I have stopped nuclear wars from breaking out across the world between Pakistan and India, Iran and Israel, and Russia and Ukraine.”
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India has rejected that account. After a ceasefire with Pakistan last year, defence minister Rajnath Singh said it was “completely incorrect and baseless to say that the military action was stopped because of pressure”.
Iran, Israel: No ceasefire agreed on
Trump also pointed to last year’s halt in fighting between Iran and Israel, which he announced on Truth Social.
Both countries publicly denied agreeing to a ceasefire, despite a pause in hostilities.
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Iranian foreign minister Abbas Araghchi said at the time: “As of now, there is NO ‘agreement’ on any ceasefire or cessation of military operations.” He added that if Israel stopped attacks by 4am, Iran would not continue, which Iran says it upheld.
Ukraine and arms control
The war between Russia and Ukraine is ongoing and has not escalated into nuclear conflict, despite repeated warnings from Moscow. Trump and Ukrainian President Volodymyr Zelensky met last month to discuss peace options, though disagreements remain over territory.
Trump also addressed the expiration of the Strategic Arms Reduction Treaty, known as New Start. Signed in 2010 by Barack Obama and Dmitry Medvedev, it capped US and Russian nuclear warheads.
“Rather than extend New Start… we should have our nuclear experts work on a new, improved, and modernised treaty,” Trump wrote, arguing the deal had been violated.
Military rebuilding claims
Trump said the US military was rebuilt during his first term, “including new and many refurbished nuclear weapons”. Refurbishment refers to life extension programmes replacing ageing components, which received more than $700m in funding.
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He also cited the creation of the US Space Force in 2019 and investment in new battleships as part of his defence legacy.
Sources: Truth Social statements; Indian defence ministry; Iranian foreign ministry

