In a social media post, Trump said he relayed the plan to Ukraine's President Volodymyr Zelenskiy as well as the leaders of the European Union, France, Italy, Germany and Finland in a group call following his session with Russian President Vladimir Putin.
"Russia and Ukraine will immediately start negotiations toward a Ceasefire and, more importantly, an END to the War," Trump said, adding later at the White House that he thought "some progress is being made".
European leaders decided to increase pressure on Russia through sanctions after Trump briefed them on his call with Putin, German Chancellor Friedrich Merz said in an X post late on Monday.
Trump did not appear ready to follow that move. Asked why he had not imposed fresh sanctions to push Moscow into a peace deal as he has threatened, Trump told reporters:
"Well because I think there's a chance of getting something done, and if you do that, you can also make it much worse. But there could be a time where that's going to happen."
Trump said there were "some big egos involved."
Without progress, "I'm just going to back away," he said, repeating a warning that he could abandon the process. "This is not my war."
After speaking to Trump, Putin said efforts to end the war were "generally on the right track" and that Moscow was ready to work with Ukraine on a potential peace deal.
"We have agreed with the president of the United States that Russia will propose and is ready to work with the Ukrainian side on a memorandum on a possible future peace accord," he told reporters near the Black Sea resort of Sochi.
European leaders and Ukraine have demanded Russia agree to a ceasefire immediately, and Trump has focused on getting Putin to commit to a 30-day truce. Putin has resisted this, insisting that conditions be met first.
Kremlin aide Yuri Ushakov said Trump and Putin did not discuss a timeline for a ceasefire but did discuss trading nine Russians for nine Americans in a prisoner swap. He said the US leader called prospects for ties between Moscow and Washington "impressive".
Russian state news agencies cited Kremlin spokesperson Dmitry Peskov as saying that Moscow and Kyiv faced "complex contacts" to develop a unified text of a peace and ceasefire memorandum.
"There are no deadlines and there cannot be any. It is clear that everyone wants to do this as quickly as possible, but, of course, the devil is in the details," the RIA agency quoted him as saying.
After speaking with Trump, Zelenskiy said Kyiv and its partners might seek a high-level meeting among Ukraine, Russia, the United States, European Union countries and Britain as part of a push to end the war.
He said he hoped this could happen soon and be hosted by Turkey, the Vatican or Switzerland. It was not immediately clear if this would be part of the negotiations Trump said would start immediately.
Trump said the Pope Leo had expressed interest in hosting the negotiations at the Vatican. The Vatican did not immediately respond to a request for comment.
One person familiar with Trump's call with the Ukrainian and European leaders said participants were "shocked" that Trump did not want to push Putin with sanctions.
In a post on X, European Commission President Ursula von der Leyen said only that the conversation with Trump was "good" and it was "important that the US stays engaged."
Ukraine and its supporters have accused Russia of failing to negotiate in good faith, doing the minimum needed to keep Trump from applying new pressure on its economy.
with AP
