Speaking alongside Greek Prime Minister Kyriakos Mitsotakis during a visit to Athens, Macron said Article 42.7 of the European Union treaty was explicit in obliging member states to assist one another in the event of armed aggression.

“On Article 42, paragraph seven, we know that for us, it is clear and there is no room for interpretation or ambiguity,” Macron told reporters at a joint news conference.The provision, often described as the EU’s equivalent of NATO’s collective defense principle, requires member states to provide aid and assistance to a fellow member subjected to armed attack on its territory.

Macron’s remarks come as EU leaders have asked officials to prepare a detailed blueprint clarifying how the clause would function operationally, reflecting a broader reassessment of Europe’s strategic autonomy and defense readiness.

The renewed focus follows mounting concern among European governments over Washington’s long-term commitment to NATO, particularly after repeated political debates in the United States over burden-sharing and military support for allies.

France has long argued for stronger independent European defense structures, with Macron repeatedly calling for greater strategic sovereignty and reduced reliance on U.S. military guarantees.Greece, which maintains one of the highest defense spending levels in the bloc relative to GDP, has supported efforts to deepen European security coordination, particularly amid ongoing regional tensions in the eastern Mediterranean.

While Article 42.7 was invoked only once by France after the 2015 Paris attacks its practical implementation has remained largely undefined, prompting calls for clearer procedures on military, logistical, and political responses.

Officials say the new framework under discussion is intended to ensure that the clause can function credibly in future crises, especially as the EU faces simultaneous security pressures from Russia’s war in Ukraine and instability across the Middle East.

Macron’s comments in Athens are likely to reinforce ongoing debates within Europe over whether the bloc should move beyond economic integration toward a more explicit collective defense posture.