USA stationed nuclear weapons in Germany.
USA operates whole Africa operations from Germany. Rammstein.
Why ?
Anyone attackuing USA instalations in Germany is automaticalky at war with Germany.
USA has nuclear-weapons in Incirlik, Turkey. Israel claims Turks are radical Islamists, so why there are nuclear weapons in Turkey ?
In addition there's Incirlik airbase in Turkey.
Simple equation. You attack Turkish territory you will raise Turkish genocide Army going towards where this attack was launched from.
Given Turkish economic, military power USA Army will always favour Turkey.
Attack on Turkey, although you want to attack USA assets will result in nation-ending Turkish Army being raised
No one attacks Turkey, no one attacks Germany
You do that economy will be switched to nation-ending war economy.