Peter Rough sat down with Kaja Kallas, European Union high representative for foreign affairs and security policy and European Commission vice president, for a fireside chat on the US-EU relationship.

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Gunners from the Armed Forces of Ukraine fire at Russian position with a 155 mm self-propelled howitzer 2C22 in the Kharkiv region on April 21, 2024. (Anatolii Stepanov/AFP via Getty Images)