Dude it's an alliance of western powers. No matter how proud the Nords are of their armies, they are ultimately dependent on the military and financial domination of the US.
Look it's hard to put a definite date on it, because capitalism didn't just happen in one day. It happened over centuries. The european alliance had its roots in the colonial rush for the New World, and later Africa. After squabbling over territories, they learned they could make more money by cooperating and exploiting the poor countries together. And it's been like that ever since about 1900.
Deterrents are not absolute. Also, I don't know how you're not aware of this, but it was Ukraine's announcement they'd be joining NATO that provoked Russia. That doesn't sound like an alliance preventing war, does it... As I said - deterrents are not absolute. They never are. Police and prison (allegedly) deter crime, for instance.
Eh? What putin says is irrelevant to reality, please stop using him as a source. If you're about to tell me joining NATO is a reason for wars to break out please make sure it's real first lmao.
So you're gonna tell me it's about the Nazis in Ukraine and you think he's just going there to liberate them? Yeah right.
EDIT: FFS you got me distracted again. Just like you wanted, I forgot my initial point was just that deterrents aren't absolute, and alliances do not necessarily deter war - and this is just one example.
Whether Ukraine joining NATO was the actual reason the war broke out, them planning to join NATO didn't STOP the war, did it?