Another major talking point is on security guarantees. Trump says security guarantees for Ukraine would be "provided" by European countries with "coordination" by the US. British Prime Minister Keir Starmer has told the BBC that the UK negotiators will shortly be arriving in Washington for further planning on this.

President Volodymyr Zelensky of Ukraine said that a full prisoner exchange was also essential to ending the war. Other European leaders also expressed their support for a cease-fire.

Ahead of his meeting with European leaders Monday, Trump put pressure on Ukrainian President Volodymyr Zelenskiy to end the invasion of his own country by handing over seized territory and dropping his dreams of belonging to the powerful military alliance.