Ukrainian President Volodymyr Zelensky said after talks with a top US Army official on Thursday that he was ready to work with Washington on a plan to end the war in Ukraine, and he expects to discuss it with President Donald Trump in coming days.

European countries are pushing back against the US-backed plan, which sources said would require Kyiv to give up more land and partially disarm, conditions long seen by Ukraine's allies as tantamount to capitulation.

But Zelensky, whose office said he had received a draft of the plan, said after meeting US Army Secretary Daniel Driscoll in Kyiv that Ukraine and Washington would work together on elements of it.

"Our teams – Ukraine and the USA – will work on the points of the plan to end the war," Zelensky wrote on Telegram. "We are ready for constructive, honest and prompt work."

Zelenskiy's office did not comment directly on the content of the 28-point plan, which has not been published, but said he had "outlined the fundamental principles that matter to our people".

"In the coming days, the President of Ukraine expects to discuss with President Trump the existing diplomatic opportunities and the key points required to achieve peace," it said.

White House Press Secretary Karoline Leavitt told a news briefing that Secretary of State Marco Rubio and US special envoy Steve Witkoff had been quietly working on the plan for about a month and Trump supports the plan.

"It's a good plan for both Russia and Ukraine, and we believe that it should be acceptable to both sides," she said.

She said the US engaged equally with the Ukrainians and the Russians on the text.

Zelensky's office said Driscoll had presented him with the plan only on Thursday, and several sources told Reuters and other media outlets that the plan was the fruit of backchannel conversations between Witkoff and Kirill Dmitriev, the special envoy of Russian President Vladimir Putin.

In a message on X on Wednesday, Rubio said the U.S. "will continue to develop a list of potential ideas for ending this war based on input from both sides of this conflict" and that peace will require concessions from both Kyiv and Moscow.

Zelensky, who met Driscoll alone then with the full US delegation, agreed to move quickly towards agreement and signing of a plan, said Colonel Dave Butler, US army chief of public affairs.

The United States, he said, wanted to ensure that this is "a good plan for the Ukrainian people."

The US ambassador to Kyiv, Julie Davis, said the talks were "remarkably constructive."

All participants "share President Trump’s vision to end this war" and wanted to move forward quickly, she said. (Reuters)