US President Donald Trump has issued a revised ultimatum to Russia, giving President Vladimir Putin 10 to 12 days from Monday to agree to a ceasefire in Ukraine.

Speaking at a news conference in Scotland, Trump said there was “no reason” to wait any longer, citing the lack of progress towards peace. Ukrainian President Volodymyr Zelensky welcomed the move, calling it “extremely significant.”

The new timeline shortens a previous 50-day deadline issued by Trump two weeks ago, in which he warned Russia of severe tariffs if it failed to end the war.

Trump said he would officially confirm the revised deadline on Monday or Tuesday, reiterating threats of sanctions and secondary tariffs aimed at Moscow. Earlier this month, he proposed a 100% tax on any nation trading with Russia — a move that would likely price Russian goods out of the US market, discouraging both Russian exports and trade partnerships.

Zelensky thanked Trump in a post on X, saying the updated deadline came “right on time” and commended the US president’s “clear stance and expressed determination” to save lives and end the war.

While meeting UK Prime Minister Keir Starmer in Scotland, Trump again condemned Russia’s ongoing invasion, now in its fourth year, though he declined to say whether he believed Putin had lied to him. He contrasted Putin’s private assurances with the “missiles flying into Kyiv and other places” nearly every night.

“We were going to have a ceasefire and maybe peace... and all of a sudden you have missiles flying,” Trump said, adding that although he had once hoped negotiations were possible, it was now “very late down the process.”

“I say, forget it. I’m not gonna talk anymore. This has happened on too many occasions and I don’t like it,” he said, though he also claimed to have had a good personal rapport with the Russian leader.

His declaration that he is “no longer interested in talks” was widely reported by Russian state media.

The Kremlin has not commented on the revised timeframe. Following the initial 50-day warning, Kremlin spokesperson Dmitry Peskov had called it “very serious” but said Moscow needed time to assess it.

Reacting to Trump’s latest remarks, Russian MP Andrey Gurulyov dismissed the ultimatum, saying such pressure “no longer works — not on the front line, not in Moscow,” and claimed Russia was guided by its “weapons, principles and will.”

Ukrainian presidential chief of staff Andriy Yermak previously praised Trump’s messaging, saying it demonstrated “peace through strength” and emphasized that “Putin respects only power.”

Russia has intensified its campaign in recent months, launching waves of drones and missiles against Ukrainian cities while pushing forward its summer offensive in the east.

Although three rounds of ceasefire talks hosted by Turkey have led to prisoner exchanges, they have yielded no breakthrough toward halting the war.

With the conflict well into its fourth year, analysts say it remains unclear how a ceasefire could realistically be reached within Trump’s 12-day window. Russia’s conditions — including Ukraine's neutrality, military reductions, and dropping NATO aspirations — remain unacceptable to both Kyiv and its Western allies.

Last week’s latest round of talks lasted barely an hour, with Peskov admitting that a breakthrough was “hardly possible.”

Source: BBC

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