Truth! Nobody has to like Putin to see that he has a reason for this action.
Ukraine is an independent nation state. Putin has no moral, legal or intellectual justification to invade because he dislikes their foreign policy.
Take for example Cuba. Cuba has been a Russian client state 90 miles from the US coast since the 1960s. Despite not liking the situation the US has no legal, moral or intellectual grounds to invade Cuba
As for the idiocy "what about the Cuban missile crisis". That was about offensive nuclear missiles being placed in Cuba. That posed a direct offense threat to the USA. That was resolved, after a show of force by the US brought the Russian to negotiate, by diplomacy.
The US removed their missiles from Turkey in exchanged for Russia removing their from Cuba
Check out UPDATED info at NATO Organization Post
https://freerepublic.com/focus/f-news/4042081/post
Very powerful: NATO SITE clearly states facts & fallacies of statements by Putin.