Why Ursula von der Leyen's Invocation of Article 42.7 Does Not Solve Europe's Structural Defense Problem

At the Munich Security Conference on February 15, 2026, the President of the European Commission, Ursula von der Leyen, called on EU member states to "revive" the mutual assistance clause of the Treaty on European Union. Article 42(7), according to von der Leyen, is not an option but an obligation — "one for all, all for one." Just a few days earlier, NATO Secretary General Mark Rutte had warned Europe that it could "keep dreaming" if it believed it could defend itself without the USA.

This was no rhetorical coincidence. It was a direct confrontation over whether Europe is militarily capable — and whether the EU treaties can guarantee this capability. The answer is: No. Not because the treaty texts are too weak, but because the EU is not a military alliance and the member states do not trust their collective defense capability.

Article 42.7 Sounds Stronger than Article 5 — But Only on Paper

Article 42(7) of the EU Treaty obliges member states, in the event of an armed attack on one of them, to "provide assistance and support by all means available to them." The wording is legally stricter than the NATO mutual assistance clause (Article 5), which only obliges measures "that each contracting party deems necessary." On paper, the EU clause thus appears more binding.

However, it has only been invoked once — after the terrorist attacks in Paris in 2015. And the outcome was sobering. France requested military support against ISIS in Syria and relief for French troops in Mali. Most EU partners responded hesitantly. Germany, Spain, and Italy rejected direct military involvement in Syria. Some states offered logistics or intelligence cooperation, but no substantial combat support.

The reason was simple: The EU has no common military command structure, no permanent forces, and no obligation for specific troop contributions. Article 42.7 is a bilateral mechanism between member states — not a collective defense system. Each country decides for itself what "assistance and support" means. And that means: political rhetoric instead of operational commitment.

Von der Leyen's Number Games — More Money, but No Military Coherence

In Munich, von der Leyen presented impressive figures: Europe's defense spending is expected to be nearly 80 percent higher in 2025 than before the war in Ukraine. The EU is mobilizing up to 800 billion euros and has granted Ukraine a loan of 90 billion euros, which Kyiv only has to repay if Russia pays reparations. By 2028, Europe's defense investments will exceed those of the USA in the previous year.

That sounds like a "true European awakening." But it is a confusion of spending and capabilities. Europe is spending more, but it is not purchasing in a coordinated manner, it is not integrating its armed forces, and it is not creating joint operational capability. The 800 billion euros flow into 27 national procurement systems that often produce incompatible weapon systems. The European Defense Fund (EDF) had a budget of just 343 million euros in 2025 — less than Germany alone spends in a month on military aid to Ukraine.

The equation "more money = stronger defense" only works if the funds flow into operational structures. They do not. What Europe has are 27 different armies, not a European armed force.

Why Eastern European EU States Trust NATO — and Not Brussels

The perhaps clearest rebuttal of von der Leyen's optimism comes from Eastern Europe. Estonia, Latvia, Lithuania, and Poland — all EU member states — spend between 3 and 5 percent of their GDP on defense. But they do this not in trust of Article 42.7, but because they rely on NATO. More precisely: because they rely on the USA.

When Russia invaded Ukraine in 2022, the Baltic states did not strengthen their cooperation with Brussels, but rather their requests to Washington for a permanent US troop presence. Why? Because NATO has integrated command structures, permanent forces, air defense, and — crucially — nuclear deterrence. The EU has none of that.

Even if Article 42.7 were invoked, member states would first have to decide who contributes what, who takes command, and how long the mission lasts. That is not defense; it is a diplomatic negotiation during a war.

The Illusion of "Qualified Majority" — Defense Requires Trust, Not Votes

Von der Leyen proposed that decisions on common defense be made by qualified majority instead of unanimity in the future. This sounds like an acceleration of decision-making. But it misunderstands the central problem: Defense is not a matter of voting mechanisms, but of mutual trust and actual military integration.

Even if a majority of EU states were to decide to provide military assistance to an attacked member — how would that be operationally implemented if there is no common general staff, no joint operational doctrines, and no pre-planned defense scenarios?

NATO has been planning the defense of its members for decades. It has defense plans for the Baltics, Poland, and Turkey. It conducts large-scale exercises annually (Defender Europe, Steadfast Noon). It has organized nuclear sharing. The EU has nothing comparable. And this cannot be solved by a treaty amendment, but only through decades of building military structures.

What von der Leyen Really Wants — and Why It Won't Work

Von der Leyen's strategy is clear: She wants to position the EU as a credible defense actor to reduce dependence on the USA. That is a legitimate goal. But the path she proposes — the activation of Article 42.7 and the rhetorical invocation of European independence — does not lead there.

The problem is not the lack of treaty texts. The problem is the lack of military integration, strategic leadership, and political will to relinquish national sovereignty in defense policy. As long as each member state controls its own military, procures its own weapons, and sets its own alliance priorities, the EU remains an economic but not a military union.

Von der Leyen can speak as often as she wants about a "European backbone of strategic capabilities" — in space, reconnaissance, and long-range strike capabilities. But as long as these capabilities are not under a common command, they remain nationally fragmented and uncoordinated in a crisis.

The Uncomfortable Truth — Europe Cannot (Yet) Defend Itself

Mark Rutte's warning was harsh but realistic. Europe cannot currently defend itself without the USA. Not because it spends too little money — von der Leyen's figures are impressive. But because it has no integrated defense structure, no common command, no nuclear capabilities (except for France and the UK, which are nationally controlled), and no trust among member states that, in a crisis, everyone will truly pull together.

Reviving Article 42.7, as von der Leyen demands, would not eliminate this structural deficit. It would only reinforce the illusion that Europe is already capable of defense. That is dangerous. Because it could lead to the USA withdrawing its security guarantee before Europe is even able to close that gap.

What Europe needs is not a new invocation of old treaty texts. What Europe needs is military integration at the level of NATO — common command structures, permanent forces, a European nuclear component (whether through French participation or a new solution), and above all: the willingness of member states to relinquish national control over their armed forces.

As long as that does not happen, Article 42.7 remains what it was in 2015: a legal document with impressive rhetoric but without operational substance.