The US maintains nearly
800 military bases in more than 70 countries and territories abroad—from giant “Little Americas” to small radar facilities.
Countries with US military bases and facilities
The largest of these is Ramstein, in Germany.
Base Structure Report - fy 2015
There is very little, if any, chance that Russia could win an offensive war against the United States, let alone the entire North Atlantic Treaty Organization. It's not happening. Sorry.
In other words, it doesn't matter how underfunded and ill-equipped most of the EU is, since the EU is a supranational economic entity headed up by Germany and France (two of the top 10 most powerful armed forces on Earth) and NATO has the United States, which outspends the next nearest 11 competitors by a wide
WIDE margin (
35% of the entire global military spending OF THE ENTIRE
PLANET).
Not if Article 5 is activated. And this wouldn't be a war of aggression based on lies ala Iraq, it would be a visible and direct reaction to Russian aggression.