The threats, pressure and ultimatums have come and gone, but Russian President Vladimir Putin has maintained Moscow’s uncompromising demands in Ukraine, raising fears he could use a planned summit with U.

U.S. President Donald Trump said Thursday that he would meet with Vladimir Putin even if the Russian leader will not meet with Ukrainian counterpart Volodymyr Zelenskyy, in comments that suggested Washington and Moscow could soon hold a summit.

Washington’s push to negotiate an end to the war has raised concerns the Trump administration will make concessions to Moscow that Kyiv cannot accept.