U.S. President Donald Trump will host Ukrainian President Volodymyr Zelenskiy and European leaders in Washington on Monday for talks focused on possible security guarantees for Ukraine, a move that could shape the next phase of negotiations to end the war with Russia.

Trump’s envoy to Russia, Steve Witkoff, said the United States could offer Ukraine NATO-style protection under a framework similar to Article 5 of the North Atlantic Treaty, which treats an attack on one member as an attack on all. Witkoff described the proposal as a breakthrough, claiming Russia had for the first time shown openness to the idea.

“The United States could offer Article 5 protection, which was the first time we had ever heard the Russians agree to that,” Witkoff told CNN.

Progress in Talks With Putin

The proposal follows Trump’s nearly three-hour meeting with Russian President Vladimir Putin in Alaska on Friday, where both leaders discussed Ukraine’s security and the possibility of a peace deal. After the talks, Putin said he was ready to work on measures to ensure Ukraine’s security, while confirming Russia’s opposition to NATO membership or Western troops in the country.

Secretary of State Marco Rubio, who also attended the Alaska talks, said progress had been made but cautioned that significant issues remain unresolved. “Ultimately, where this should lead is to a meeting between Zelenskiy, Putin and President Trump,” Rubio said.

Among the points under discussion are Ukraine’s borders, military alliances, and long-term security guarantees. Proposals reportedly include Russia relinquishing some occupied areas in exchange for Ukraine ceding other fortified territory and freezing current front lines.

A Possible Path to Peace — or Stalemate

Witkoff said Russia had also agreed in principle to pass legislation renouncing further territorial claims on Ukraine as part of a peace framework. European leaders, meanwhile, are expected to rally behind Zelenskiy in Washington as Trump presses Kyiv to accept a swift settlement.

Rubio emphasized that any agreement must balance concessions on both sides. “If one side gets everything they want, that’s not a peace deal. It’s called surrender,” he said, adding that U.S. sanctions on Russia would remain — and potentially expand — if no deal is reached.

Trump hinted at progress in a social media post, writing: “BIG PROGRESS ON RUSSIA. STAY TUNED!” but offered no details.