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Recent reports illuminate a marked shift in defense cooperation between France and the U.K., primarily centered around Ukraine. French Foreign Minister Jean-Nöel Barrot has advanced the conversation by urging NATO allies to abandon previous "red lines"—which were initially designed to limit actions during the conflict and prevent a direct confrontation with Russia. Over time, these lines have become increasingly meaningless as both NATO and Russia have tested and breached them, raising questions about their efficacy in governing the war.