I wonder how much of it is part of the increased NATO requirements for a putting a increased percentage of GDP into defense, pushed in part by the US wanting to

I wonder how much of it is part of the increased NATO requirements for a putting a increased percentage of GDP into defense, pushed in part by the US wanting to lower it's international defense outlays. And, to some degree, I wonder if the strategic change is driven by more erratic and less long term stability in the US's willingness and ability to defend the EU.