I guess you must think they did that out of the goodness of their heart? Do you know the funding structure of NATO? The US subsidizes the freedom of every European country, this will not change ever.
This is the hard lesson for the Europeans: they need to take their fate into their own hands. I am skeptical, but "not change ever" is a pretty bold statement.
It seems like you don't know the structure of NATO because so far the US has been the only NATO member to ever evoke article 11 for "joint defense pact" [0] in response to the 9/11 attacks which ushered the "War on Terror" with all it's ugly, inhumane and illegal manifestations to this day.
In that context, a shockingly high amount of comments here are of extremely low quality and reflect a whole lot of "ugly US American" along the same lines of a Trump who boasts about how the US supposedly singlehandedly saved Europe from two world wars.
People from all kinds of allied countries died for these US interests in Iraq, Afghanistan, and many other countries, yet comments here are seriously complaining about a lack of "contribution" in a war that wasn't only illegal [1], it was also highly unpopular pretty much everywhere outside the Anglo-Saxon sphere [2].
If countries like Germany would have went along with what their population actually demanded, the US would have been hard-pressed to stage that whole thing in the MENA region without Ramstein Air Base, just like drone controls go through Germany to this day.
These, along with the MENA refugee streams which date back to Afghanistan and Iraq, are among the main factors why right-wing nationalism is on the rise in Europe. No need for any "Russian interference", it's plenty enough when people perceive their own government acting against their own best wishes and interests like it's been repeatedly happening in Germany. Not just in the context of Afghanistan/Iraq support, but also the whole NSA episode which had literally no consequences at all.
In that context, I'd be really interested from whom the US is supposedly "protecting" Europe these days? Iraq? Iran? China? Russia? Really?
The US is in Europe because it profits from being in Europe, you can't project "global military power" [3] without a supporting global network of military infrastructure and contrary to popular belief these "host nations" are no freeloaders [4].
One would think that a president like Trump would have served as a mirror to US Americans how their mannerism is often perceived outside the US, sadly that seems not to be the case.
It's particularly absurd in the current "anti-Chinese" context, Reddit is full of people trying to justify this arrest with the "inhumane treatment of Muslims in China", which is a page China took straight out of the US's playbook: Label them terrorists and all their rights, human or not, and suddenly nullified and everything is allowed, including torture and targeted assassinations.
Either people have really short/selective memories or they can only care/be aware of whatever is currently being propagandized [5] all over the English speaking Internet.
The Iraq war involved about 150k us troops, 50k British... and about 6k from 20 other nations combined. So outside of Britain, there was basically no outside support (and I’m not sure Britain really counts, considering they are withdrawing from the EU and have always sort of seen themselves as apart).
But I guess the war in Iraq was too long ago to be remembered today by Americans.