Ukrainian President Volodymyr Zelenskyy and European leaders on Tuesday accused Russian President Vladimir Putin of delaying diplomacy to end the war in Ukraine and rejected any proposal for Kyiv to surrender territory captured by Russia, including ideas suggested by U.S. President Donald Trump.

In a joint statement, eight European leaders and senior EU officials announced plans to use Moscow’s frozen assets abroad to support Ukraine, despite concerns over legality and potential consequences. The statement also reaffirmed that international borders should not be changed by force.

Zelenskyy criticized Russia for returning to diplomacy only under pressure and said ongoing pressure is necessary to achieve peace. Trump, preparing to meet Putin in Budapest, has shifted his position several times—previously suggesting Ukraine might need to concede land, then calling for a freeze on current front lines, and most recently proposing dividing the Donbas region.

European and Ukrainian leaders are working to keep Trump aligned with their position, emphasizing that halting the fighting on the current front lines should serve as the starting point for negotiations. They warned that freezing the conflict could allow Russia to launch future attacks.

Additional sanctions on Russia are expected to be discussed at an EU summit in Brussels on Thursday, while the Coalition of the Willing, a group of 35 countries supporting Ukraine, will meet in London on Friday.