Donald Trump and Vladimir Putin will meet face-to-face in Hungary to discuss ending Russia's full-scale invasion of Ukraine, the US president has said.
The summit will be their second since Mr Trump's return to the presidency.
A meeting in Alaska in August failed to yield a deal and was widely seen as a diplomatic win for the Russian president, who made no concessions and convinced Mr Trump to drop demands for a ceasefire.
Russia has intensified its aggression against Ukraine in the months since. It has targeted energy infrastructure with a relentless drone assault, cutting power across the country as winter approaches.
Mr Trump announced plans for the second meeting after a phone conversation with Mr Putin on Thursday, local time, which he called "very productive".
The White House said the call lasted more than two hours.
A date for the meeting has not been set, but Mr Trump said it was likely "within two weeks or so".
He said it would take place after talks between US Secretary of State Marco Rubio and high-level advisers from the US and Russia next week, at a location yet to be chosen.
"President Putin and I will then meet in an agreed upon location, Budapest, Hungary, to see if we can bring this 'inglorious' War, between Russia and Ukraine, to an end," Mr Trump posted on his social media platform, Truth Social.
In recent months, Mr Trump has repeatedly expressed frustration with his inability to end the war. Many expert observers suspect Mr Putin is stringing his American counterpart along while negotiating in bad faith.
"Because of my relationship with President Putin, I thought this would be very quick," Mr Trump said on Thursday.
"Who would think I did the Middle East before I did this?"
Ukrainian president Volodymyr Zelenskyy is set to visit the White House for talks with Mr Trump on Friday.
Trump weighs Tomahawk request
The US has been considering supplying Ukraine with long-range Tomahawk missiles that could strike deep inside Russia.
Mr Putin told Mr Trump supplying Tomahawks would harm the peace process and damage US-Russia ties, Kremlin aide Yuri Ushakov said.
"I did actually say [to Mr Putin], 'Would you mind if I gave away a couple of thousand Tomahawks to your opposition?'" Mr Trump told reporters later.
"I did say that to him. I said it just that way. He didn't like the idea.
"You have to be a little bit light-hearted sometimes."
The Putin-Trump call took place at Russia's request, according to the Kremlin.
Mr Zelenskyy said Russia was "rushing to resume dialogue as soon as it hears about Tomahawks".
"Tomorrow, a meeting with President Trump is scheduled and we expect that the momentum of curbing terror and war that succeeded in the Middle East will help to end Russia's war against Ukraine," he wrote on X.
"Putin is certainly no braver than Hamas or any other terrorist.
"The language of strength and justice will inevitably work against Russia as well."
Sanctions threat
Mr Trump campaigned for the presidency with a promise of bringing a quick end to the war, which was sparked by Russia's full-scale invasion in February 2022.
He has threatened Russia with a range of economic penalties, including "secondary" sanctions on its trading partners.
A bill to impose sanctions on countries that buy Russian oil, gas and uranium is before the US Senate.
Republicans had indicated they would not bring the bill to a vote without the president's endorsement.
But Republican Senate Leader John Thune said on Thursday it would be considered in the next 30 days.
"I think it's time to move," he told Politico.
Mr Trump later said he would speak to Senator Thune about the bill.
"He doesn't know about the call yet," Mr Trump said.
"It may not be perfect timing, but it could happen in a week or two."
Democrats have also been pushing to put more pressure on Russia.
Jeanne Shaheen, the most senior Democrat on the Senate's Foreign Relations Committee, said she was encouraged by Senator Thune's comments and looked forward to seeing the final text of the legislation, which is still being negotiated.
"If President Trump continues to drag his feet, Congress must act decisively to hold Putin accountable and end this war," she said in a statement to the ABC.
"After walking away from his Alaska summit with Putin empty handed, President Trump has now decided to reward Putin again by rolling out the red carpet in Hungary.
"President Trump is repeating the mistakes of the past by not arming Ukraine to the teeth and letting them win this war."
In August Mr Trump doubled tariffs on Indian products to 50 per cent to pressure India to stop buying Russian oil.
On Wednesday, he said Indian Prime Minister Narendra Modi had assured him India would stop buying Russian oil. Mr Trump said he was now "going to get China to do the same thing".
India has not confirmed Mr Trump's claim, but a statement from its foreign ministry said the country had always sought oil from a range of suppliers.
No word on trilateral talks
Mr Trump's post made no mention of any meeting between the Russian and Ukrainian presidents, which had been slated as the next step in negotiations.
In August, Mr Trump said he was arranging a meeting between Mr Zelenskyy and Mr Putin, which was to have been followed by a trilateral meeting with him.
Mr Trump said at the time that Mr Putin had agreed to those meetings during a telephone call.
That call followed talks between Mr Trump, Mr Zelenskyy and a group of European leaders in Washington.
But there was widespread scepticism about Mr Putin's true commitment to that meeting, and the Kremlin's subsequent statements about it were less committal.
