European Union countries must purchase military equipment made in Europe under a new loan program meant to help the continent provide for its own security, a top EU official said Tuesday, even though most of its defense materiel currently comes from U.S. suppliers.

At a summit last week, the EU’s 27 leaders weighed a European Commission proposal for a new loan plan worth 150 billion euros ($163 billion). It would be used to buy air defense systems, drones and “strategic enablers” like air transport, as well as to boost cybersecurity.

“These loans should finance purchases from European producers, to help boost our own defense industry,” Commission President Ursula von der Leyen told EU lawmakers.

Von der Leyen said the “contracts should be multiannual, to give the industry the predictability they need” and that the priority should be for countries to buy equipment together in groups “because we have seen how powerful this can be.”