How Europe's three defense visions could converge — or collide — and what it means for the eastern flank.
Part I established the three competing visions for European defense and the capability gap that limits all three. This part examines whether those visions can be reconciled — and what happens to the eastern flank if they cannot.
Beyond political rhetoric, the operational picture on NATO's eastern flank in 2026 is sobering. Polish ground forces have grown to 300,000 active personnel — the largest European army outside Russia. But personnel without integration is mass without coordination.
Combined Joint Task Force-East, the proposed multinational command established at the March 2026 Brussels summit, remains without operational headquarters or assigned forces seven months after its announcement.
The scenario most defense planners are quietly modeling is not a Russian armored thrust through the Suwałki gap — that is a known problem with known responses. The harder scenario is a hybrid campaign that exploits the seams between national defense systems, command structures, and political tolerances.
“The next conflict will not begin with tanks crossing borders. It will begin with the eastern flank discovering, three weeks in, that no one has authority to coordinate the response.”
Three structural changes would make the difference: a permanent multinational corps headquarters with delegated operational authority, integrated air and missile defense with single-network command, and joint procurement for ammunition and air defense interceptors.
None require treaty amendment. All require political will that has so far been absent. The window for building that consensus is narrow — perhaps two years — before the strategic environment hardens around the worst version of each national vision.