The Trump administration has trumpeted a breakthrough in talks with Russia this month, claiming that Mr. Putin had accepted a proposal for the West to provide security guarantees for Ukraine as strong as Article 5 of the NATO charter, which stipulates that an attack on one alliance member is considered an attack on all.

Foreign Minister Sergei Lavrov said any Western security guarantees for Ukraine in an eventual peace deal could only be enacted with Moscow’s cooperation—essentially rendering them useless against another Russian invasion.

Major questions remain over what both sides might accept after Trump held successive talks with Putin and Zelensky.

On the heels of meeting Russian president Vladimir Putin in Alaska, President Trump invited various European leaders & Ukraine's president, Volodymyr Zelenskyy, to the White House to discuss plans to end Russia's war in Ukraine.

President Donald Trump on Tuesday offered his assurances that U.S. troops would not be sent to Ukraine to defend against Russia, after seeming to leave open the possibility the day before. Trump also said in a morning TV interview that Ukraine’s hopes of joining NATO and regaining the Crimean Peninsula are “impossible.

NATO military leaders, including top U.S. military generals, are planning to discuss Ukraine on Wednesday during a video meeting, officials said. The online discussion comes as President Donald Trump on Tuesday said European allies want to commit ground troops to guarantee Ukraine's security.