NATO existed to fight the soviet union. when the cold war ended, and russia was broke, they wanted to join europe. we vehemently said no.
that is by definition russia extending a olive branch to the west.
post 1990 there was NO reason to keep expanding NATO, a MILITARY ALLIANCE, right up to the border of russia. the russians told us this would piss them off. our own intelligence said that would piss them off.
we DGAF and did it anyway. and now we are FAFOing