Most EU countries have been demilitarizing for 30 years more and more, with the strategy being "it’s a new world without wars, and also big daddy USA will protect us,l

That’s not the Europe I see now and sounds like a US President trope. I would agree that post-Cold War that was the case, but I’d say in the last decade at least, it’s not.

But, genuine question as I’m open to being wrong, saved this is an area that interests me, do you have sources for this?

What are people’s go-to for eBook buying stores? Preferably DRM free.

I try to not buy Kindle books but I usually end up back there as it’s either much cheaper (not just slightly) or can only be found there.