While President Trump and Ukrainian President Volodymyr Zelensky work to set up a bilateral Russia-Ukraine summit, Moscow is making new demands that could cancel out the White House’s recent successes in seeking an end to the deadliest conflict in Europe since World War II.

French President Emmanuel Macron, in Washington for talks on long-term security guarantees for Ukraine, said France and Britain would hold a meeting on Tuesday with Kyiv's allies. But he warned against trusting Russian President Vladimir Putin,