Just no evidence NATO enlargement debate was about military security. Itās about the reason why the Cold War was lost - the economic consequences of defeat. Once E Europe was part of the transatlantic financial system its prosperity would advance too fast for Russiaās comfort.
I struggle with the NATO enlargement debate for the following reasons.
-- The prima facie case is "we ignored Russia at our peril; if we only took their concerns into account--i.e. did not enlarge NATO to the East--then things would have turned out better. Didn't they tell us, time and again, that this was unacceptable."
-- But then in comes the counterargument: "If we did not find a safe anchoring for these countries in NATO, they'd be much less secure than they are today. In effect, there would be many more Moldovas and Ukraines." Also: "Why should we have indulged Russia with its imperialist fantasies; we should have actually been straightforward with the Russians, so they'd face the reality that they had lost the Cold War. Tough love. Instead we tried to humor them."
-- Then comes in the other counterargument: "Then, why should we be surprised that a resurgent Russia is trying to screw us over. Tough love. And as for Eastern Europe, are they more secure today, with an aggressive Russia at their doorstep, and Art. 5 little better than make-believe?"
-- The counterargument to that is: "Absolutely, they are better off, just look at Ukraine."
-- "But Ukraine would not have happened if..."
-- "Of course, it would..."
This is a conversation one is bound to have in one's head. Arguments on both sides have merit, yet they can't all be true, can they?
Unfortunately, when it comes to this whole topic, I am like Isiah Berlin's fox, jumping here and there, because each position--when taken to its logical conclusion--leads to absurdity.
In any case, the evidence is pretty thin for much of this on-going argument. What we do have mounting evidence for is that throughout the 1990s the Russians incessantly complained about NATO's eastern enlargement. It wasn't something Putin suddenly came up with in 2007. Make of it what you will.