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 Trump was joined in the Oval Office on Monday by Ukrainian President Volodymyr Zelenskyy and European leaders, just days after a face-to-face summit with Russian President Vladimir Putin.