Trump has appeared increasingly exasperated over Russia’s refusal to halt the bombardment of Ukrainian cities.

President Donald Trump framed his Friday summit with Vladimir Putin as a moment to feel out the Russian leader’s parameters for ending the war in Ukraine and acknowledged it would take further meetings to strike a final peace deal.

U.S. NATO Ambassador Matthew Whitaker said President Trump will have to “trust but verify” Russian President Vladimir Putin during their meeting in Alaska on Friday, where they plan to hold talks about ending the war with Ukraine.