FILE - Belgium's Prime Minister Alexander De Croo, right, and Belgium's Defense Minister Ludivine Dedonder, left, pose with Ukraine's President Volodymyr Zelenskyy in front of an F-16 at Melsbroek military airport in Brussels, on May 28, 2024. Ukraine may keep some of the F-16 fighter jets it's set to receive from its Western allies at foreign bases to protect them from Russian strikes, a senior Ukrainian military officer said Monday June 10, 2024. Belgium, Denmark, the Netherlands and Norway have committed to providing Ukraine with over 60 U.S.-made F-16 fighter jets to help it fend off Russian attacks. (AP Photo/Virginia Mayo, File)