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.

European leaders urged more "pressure" on Russia overnight Saturday, after the announcement of a Trump-Putin summit to end the war in Ukraine raised concern that an agreement would require Kyiv to cede swathes of territory.