Kaja Kallas, the EU's High Representative for Foreign Affairs and Security Policy, has called on member states to release Patriot air-defense batteries from their national stockpiles for Ukraine, according to The New Voice of Ukraine; the European Commission said it made the same request of capitals, according to Українські Національні Новини. The systems are held by national militaries, not the EU itself, according to UNITED24 Media.

The appeal illustrates why the EU struggles to act decisively on hard security: arms transfers and defense procurement remain a national competence, decided by each government rather than the European Commission or the High Representative. Kallas can lobby publicly and raise the issue at the Foreign Affairs Council, but she cannot requisition equipment or override a capital's refusal.

Patriot batteries are Ukraine's principal shield against Russian ballistic missiles, and few EU states possess them. A public appeal from Brussels functions as diplomatic pressure and signalling to Moscow and allies alike — a pattern that recurs whenever the EU tries to coordinate hard-security assets that ultimately answer to national capitals, not the Union.

What to watch: which, if any, member states publicly commit Patriot batteries in response to Kallas's appeal, and whether the Commission pairs the request with financing incentives to make transfers more attractive to reluctant capitals.