Kaja Kallas, the European Union's top diplomat, sat down with "Face the Nation" moderator Margaret Brennan to discuss the Trump administration's approach to the war in Ukraine and the strained relationship with the European Union.

EU chief diplomat Kaja Kallas warns Russian President Vladimir Putin "doesn't want peace" ahead of the meeting between President Trump and Ukrainian President Volodymyr Zelenskyy.

Russian President Vladimir Putin has warned of "forces" attempting to derail Ukraine peace talks currently being brokered by Washington and Moscow. Newsweek has contacted the Russian Foreign Ministry for comment by email.

EU foreign policy chief Kaja Kallas decried ruling out NATO membership for Ukraine in an interview with AFP published on Feb. 27. To the dismay of Ukraine and its allies in Europe, U.S. President Donald Trump has repeatedly ruled out NATO membership for Ukraine as a security guarantee against future Russian aggression.

European Union foreign policy chief Kaja Kallas said on Thursday that interactions between the United States and Russia showed Moscow had not given up its territorial goals in Ukraine, and that appeasing it would send a dangerous signal.

Zelenskyy remains adamant about NATO membership for Ukraine because it means that other security guarantees are more likely, experts say.