In history 80 years is nothing.

But since the industrial revolution 80 years is something.

I hope it's a trend: but living in Europe right now, I do feel like our strongest ally are giving our enemies reason doubt the deterrence we've collectively built over the past 77 years.

We had to deploy armed troops to Greenland to deter an ally from invasion.

The deterrence to war we've spilled blood building for 77 years.

Economics is part of why we haven't had wars, collective deterrence probably had something to do with it too. Without NATO who is to say how many smaller nations Russia/USSR would have invaded for the fun of it.