

Oh, so there is more than the US’s say-so at play.
It’s almost like it’s a voluntary agreement to coordinate and defend each other. One which doesn’t intrinsically depend on the US in any way, but just happens to have the US as by far the largest member.



Oh, okay. AWS is actually a good analogy. It’s a huge pillar of the existing infrastructure, and if it was gone it would be a pretty huge, unprecedented crisis. The internet would still come back, though. (Since I’m on all alt platforms already, I actually didn’t notice it was down until I saw it on the news!)
Similarly, NATO would be in a bind, but I have every reason to think the considerable power and common interests of the remaining parties would see it through. One big question I’ve seen mentioned is the American officers that staff parts of it. Either they could keep working there even if the US is not a member, which is possible, or there would be just be a period of interruption to it’s coordination functions while the ranks are refilled. Since Britain and France are nuclear powers, just article 5 is a strong protection already, though.