LS, you posted:
“I’m even in favor of greatly reducing—though not removing-—the number of bases in Germany.””
Unfortunately, 95% of the Cold War US Army and USAF bases in Germany have been CLOSED. The Army has only 2 combat brigades left in Europe, one at Grafenwoehr/Vilseck, Germany and in Vincenza, Italy. The USAF still has a couple of combat squadrons at Ramstein AFB, but all of the other US Air Force bases in Germany are now closed, and only 1 or 2 still exist in Great Britain & Holland. US ARMY Europe headquarters, now a skeleton organization moved from Heidelberg to Wiesbaden 3-4 years ago.
This link shows a couple of dozen Army posts still open in Germany, but they have only small logistical support elements there, not combat units. https://en.wikipedia.org/wiki/List_of_United_States_Army_installations_in_Germany
That’s probably as much as we need, though I’d favor the Donald Trump Base in Poland.