FILE - Flags of NATO member countries flap in the wind outside NATO headquarters, in Brussels, Wednesday, May 25, 2022. United States President Joe Biden and his counterparts meet in Washington for a three-day summit beginning Tuesday, July 9, 2024 to mark the military alliance's 75th anniversary, with Russian troops pressing their advantave along Ukraine's eastern front in the third year of war. (AP Photo/Olivier Matthys, File)