Center on Europe and Eurasia

Ukrainian President Volodymyr Zelensky attends a meeting of the NATO-Ukraine Council during the NATO Summit in Vilnius on July 12, 2023. (Paul Ellis/Pool/AFP via Getty Images)

NATO Secretary General Jens Stoltenberg at the 2023 NATO summit on July 11, 2023, in Vilnius, Lithuania. (Petras Malukas/AFP via Getty Images)

A Lithuanian soldier stands next to a public bus with a mural on it urging the arming of Ukraine with F-16 fighter jets on the first day of the 2023 NATO Summit on July 11, 2023, in Vilnius, Lithuania. (Sean Gallup via Getty Images)

Ukrainian soldiers use an armored engineer vehicle based on a Leopard tank chassis to pull their comrades car from a ditch on May 11, 2023. (Serhii Mykhalchuk/Global Images Ukraine via Getty Images)

Ukrainian servicemen move with a Howitzer through Vuhledar frontline amid Russia-Ukraine war in Donetsk, Ukraine, on July 1, 2023. (Ercin Erturk/Anadolu Agency via Getty Images)

Wall Street Journal reporter Evan Gershkovich appears at the Moscow court on June 22, 2023. (Sefa Karacan via Getty Images)

(Screenshot via Scripps News Tonight)

Russian President Vladimir Putin attends a gathering with the security forces in the capital Moscow on June 27, 2023. (Kremlin Press Office/Handout/Anadolu Agency via Getty Images)

Members of the Wagner Group prepare to depart from the Southern Military District's headquarters and return to their base on June 24, 2023, in Rostov-on-Don, Russia. (Stringer/Anadolu Agency via Getty Images)

Members of the Wagner Group prepare to depart from the Southern Military District's headquarters and return to their base on June 24, 2023, in Rostov-on-Don, Russia. (Stringer/Anadolu Agency via Getty Images)