Money isn’t the issue, at least not a real limiting issue. Any major European leader crying about it, should go suck on a tailpipe.
The real limiting factors are existing European stockpiles, and limited industrial capacity for things like high volume munition and artillery shell production.
A long history of military dictatorships, followed by the many flavors of Peronism, is actually how Argentina managed to downgrade themselves from developed economy, to a developing one. Which is also what created the conditions that swept the current government to power.
I’m not saying the current administration is helping the situation, just that their economic policies have continued a long standing tradition of gross economic mismanagement.