The president’s statements came after the two leaders met for a discussion that took place after what Trump described as an “excellent,” two-and-a-half-hour phone conversation with Russian President Vladimir Putin, whose invasion of Ukraine launched the war four years ago. Trump insisted he believed Putin still wants peace, even as Russia launched another round of attacks on Ukraine while Zelenskyy flew to the United States for the latest round of negotiations.

“Russia wants to see Ukraine succeed,” Trump said during a late afternoon news conference following a meeting with Zelenskyy, whom he repeatedly praised as “brave.”

Trump and Zelenskyy both acknowledged thorny issues remain, including whether Russia can keep Ukrainian territory it controls. After their discussion they called a wide group of European leaders, including Ursula von der Leyen, president of the European Commission, and the leaders of Finland, France, Germany, Great Britain and Poland.

Zelenskyy thanked Trump for his work. “Ukraine is ready for peace,” he said.

Trump and Putin will speak again

Trump said he’d follow the meeting with another call to Putin. Earlier Sunday, Putin’s foreign affairs adviser Yuri Ushakov said the Trump-Putin call was initiated by the U.S. side, lasted over an hour, and was “friendly, benevolent and businesslike.” Ushakov said Trump and Putin agreed to speak again “promptly” after Trump’s meeting with Zelenskyy.

But Ushakov added that a “bold, responsible, political decision is needed from Kyiv” on the fiercely contested Donbas region in eastern Ukraine and other matters in dispute for there to be a “complete cessation” of hostilities.

In overnight developments, three guided aerial bombs launched by Russia struck private homes in the eastern city of Sloviansk, according to the head of the local military administration, Vadym Lakh. Three people were injured and one man died, Lakh said in a post on the Telegram messenger app.

The strike came the day after Russia attacked Ukraine’s capital with ballistic missiles and drones on Saturday, killing at least one person and wounding 27, Ukrainian authorities said. Explosions boomed across Kyiv as the attack began in the early morning and continued for hours.

Trump said, however, that he still believes Putin is “very serious” about ending the war.

“I believe Ukraine has made some very strong attacks also,” Trump told reporters as Zelenskyy stood by his side. “And I don’t say that negatively. I think, you probably have to. I don’t say that negatively. But I think, he hasn’t told me that, but there have been some explosions in various parts of Russia. It looks to me, like, I don’t know. I don’t think it came from the Congo.”

Trump noted that it was possible that the negotiations will fall apart. “In a few weeks, we will know one way or the other, I think. … But it could also go poorly.”

The face-to-face sit-down between Trump and Zelenskyy underscored the apparent progress made by Trump’s top negotiators in recent weeks as the sides traded draft peace plans and continued to shape a proposal to end the fighting. Zelenskyy told reporters Friday that the 20-point draft proposal negotiators have discussed is “about 90% ready” — echoing a figure, and the optimism, that U.S. officials conveyed when Trump’s chief negotiators met with Zelenskyy in Berlin earlier this month.

During the recent talks, the U.S. agreed to offer certain security guarantees to Ukraine similar to those offered to other members of NATO. The proposal came as Zelenskyy said he was prepared to drop his country’s bid to join the security alliance if Ukraine received NATO-like protection that would be designed to safeguard it against future Russian attacks.

‘Intensive’ weeks ahead

Zelenskyy also spoke on Christmas Day with U.S. special envoy Steve Witkoff and Jared Kushner, Trump’s son-in-law. The Ukrainian leader said they discussed “certain substantive details” and cautioned “there is still work to be done on sensitive issues” and “the weeks ahead may also be intensive.”

The U.S. president has been working to end the war in Ukraine for much of his first year back in office, showing irritation with both Zelenskyy and Putin while publicly acknowledging the difficulty of ending the conflict. Long gone are the days when, as a candidate in 2024, he boasted that he could resolve the fighting in a day.

After hosting Zelenskyy at the White House in October, Trump demanded that both Russia and Ukraine halt fighting and “stop at the battle line,” implying that Moscow should be able to keep the territory it has seized from Ukraine.

Zelenskyy said last week that he would be willing to withdraw troopsfrom Ukraine’s eastern industrial heartland as part of a plan to end the war, if Russia also pulls back and the area becomes a demilitarized zone monitored by international forces.

Putin wants Russian gains kept, and more

Putin has publicly said he wants all the areas in four key regions that have been captured by his forces, as well as the Crimean Peninsula, illegally annexed in 2014, to be recognized as Russian territory. He also has insisted that Ukraine withdraw from some areas in eastern Ukraine that Moscow’s forces haven’t captured. Kyiv has publicly rejected all those demands.

The Kremlin also wants Ukraine to abandon its bid to join NATO. It warned that it wouldn’t accept the deployment of any troops from members of the military alliance and would view them as a “legitimate target.”

Putin also has said Ukraine must limit the size of its army and give official status to the Russian language, demands he has made from the outset of the conflict.

Ushakov told the business daily Kommersant this month that Russian police and national guard would stay in parts of Donetsk -– one of the two major areas, along with Luhansk, that make up the Donbas region — even if they become a demilitarized zone under a prospective peace plan.

Ushakov cautioned that trying to reach a compromise could take a long time. He said U.S. proposals that took into account Russian demands had been “worsened” by alterations proposed by Ukraine and its European allies.

Trump has been somewhat receptive to Putin’s demands, making the case that the Russian president can be persuaded to end the war if Kyiv agrees to cede Ukrainian land in the Donbas region and if Western powers offer economic incentives to bring Russia back into the global economy.