Earlier quoted context omitted.
You have Putin making claims about borders based on his own and very selective version of history, high ranking politicians (and their media) making threats about invading or nuking other countries, and of course there's their invasion of Ukraine... Obviously people and countries will reconsider their position and act. This is a reaction to Russia's behaviour. We can't behave like dicks and then cry when people that…
How about the agreement not to expand NATO? Or Minsk agreements? It's so funny that people talk about Article 5, but don't really know what it really says! If Russia attacks Poland, let's say, because Poland gets into Ukraine, you think America will start a WWIII, because of Poland? Get real!
While you try to find that, it would be great if you could explain why countries want to give away some of their military freedom and risk being dragged to other wars and join NATO. Why did the baltic countries join? Why did Sweden and Finland - two typically anti-NATO countries - recently changed their mind without public opposition?
NATO should send Putin a "salesman of the year 2022" award. The guy managed to give a new life to the organisation and made both countries join, creating a "east expands to NATO" (and not a "NATO expands east") situation. This wouldn't have happened before Feb 2022... are we sure he isn't working for the "west"?
If you want to talk about agreements, we can start by talking about the Budapest Memorandum from 1994 ( https://en.wikipedia.org/wiki/Budapest_Memorandum ). It's only 6 points and very easy to understand, I recommend reading it.
I don't know who's talking about Article 5 being used when a member of NATO starts an offensive war against someone else. I also didn't read anything about Poland joining Ukraine to fight Russia (which, let's not forget, decided to wage war). Maybe you replied to the wrong person?
Not going to continue this discussion with you though. Not that the west is blameless, but I have no time to discuss with someone that blames everyone but the country that willingly started the war in Ukraine.