Too late. Peacetime's over, guys - they're going to need more armed forces to support the EU, not less. The U.S. defense umbrella was designed to oppose the Soviet Union, not make up for suicidal immigration policies. On that one, the EU is on its own, and frankly it isn't doing very well at the moment.
Candyland's over and it's time to claim the empire back from the barbarians or go under. We couldn't help with that if we wanted to.