Stockpiles of weapons in the European Union are running out as member states continue to send weapons and ammunition to Ukraine, said the head of EU diplomacy, Josep Borrell, calling on EU countries to better coordinate their spending on military equipment, AP reports.

“The military stocks of most member states has been, I wouldn’t say exhausted, but depleted in a high proportion, because we have been providing a lot of capacity to the Ukrainians,” EU foreign policy chief Josep Borrell said in a debate with European lawmakers.

“It has to be refilled. The best way of refilling is doing that together. It will be cheaper,” Borrell said.

At a meeting in the Czech Republic last week, EU defense ministers discussed ways to better pool military equipment and resources, as well as bulk purchase ammunition and weapons, such as air defense systems, which Ukraine continues to need.

Borrell warned that if member countries continue to expand their military capabilities in the same way, the result will be a big waste of money.

Borrell also expressed regret that he believes the EU-27 missed the opportunity to start training the Ukrainian military a year ago, many months before Russia launched its operation in February.

“Unhappily we didn’t, and today we regret. We regret that last August we were not following this request, fulfilling this request,” he said. Had the EU responded at the time, Borrell said, “we would be in a better situation.”