Chair of the NATO Military Committee Admiral Rob Bauer, center, Supreme Allied Commander Europe, General Christopher Cavoli, left, and Supreme Allied Commander Transformation General Chris Badia prepare to address a media conference at NATO headquarters in Brussels, Thursday, Jan. 18, 2024. Ukraine is locked in an existential battle for its survival almost two years into its war with Russia and Western armies and political leaders must drastically change the way they help it fend off invading forces, a top NATO military officer warned on Wednesday. (AP Photo/Virginia Mayo)