Which is the only thing that matters to people.
>"When in a war, you are buying ammunition and weaponry with USD, not PPP. When there's a energy shock, you are importing oil and gas with USD, not PPP. When you are in a AI race, you are buying GPUs with USD, not PPP."
Thank you for confirming the purpose of USD - make every other country into a servant.
Practically speaking nobody has attacked the EU country. Rather quite the opposite. EU also happens to have their own weaponry. And in a worst case they can just produce whole bunch of nukes and declare simple policy: do not attack us or else you will be nuked.