Ukraine's President Volodymyr Zelenskiy holds a press conference during a NATO leaders summit

Ukraine's President, Italian Prime Minister, and NATO Secretary General Jens Tottenberg

German Chancellor Olaf Scholz attend a NATO leaders summit

President Joe Biden delivers a speech at Vilnius University after the NATO summit

People hold American, Ukrainian and Lithuanian flags as they wait to attend President Joe Biden's speech at Vilnius University

British Prime Minister Rishi Sunak attend a meeting of the NATO-Ukraine council during a NATO leaders summit