NATO is the bodyguard standing next to the woke/globalist/neo-commie nurses, as they administer the death-injection to Western EU and Christian culture.
The EU has absolutely NO REASON to invest in or have any Mil units @ 100% as long as they (correctly) believe the US will pay for and provide 100% of their defense.
The US should keep those bases in place. But pull the troops and material.
Maybe only have one active in the EU to rotate in and out of middle east.