I think the AHC could be met if HW Bush were reelected and a different Democrat were elected in 1996. It was Bush Sr's administration which made the promise that NATO would not move "one inch to the East." So keep Bush in power and elect a Democrat who largely continues his foreign policy, although this is more difficult since we don't know what Cuomo, Brown, etc would have done in terms of foreign policy.
That said, Cold War architect George Kennan criticized Clinton's expansion of NATO and called it a serious mistake. He might have had a fair point since Putin was able to use this as an excuse to stomp on Georgia and put his grubby paws on Crimea. And there are Russians who do geuiniely feel that the expansion of NATO was meant as an aggressive move meant to "encircle" Russia. However that doesn't mean Putin is in anyway right to oppress his neighbors and the NATO expansion was justified in retrospect since it serves as a greater defense against Russian aggression. I personally think NATO's borders are fine where they are now since any further expansion would destabilize what is a very tense global situation and encourage Putin to expand his own borders, but that opinion is better suited for chat so I'll leave it there.