Your own link says: "The treaty proposed equal limits for the two "groups of states-parties", the North Atlantic Treaty Organization (NATO) and the Warsaw Pact" and later "most former non-USSR Warsaw Treaty members subsequently joined NATO, followed later by the Baltic states and the states of the former Yugoslavia".

"CFE-II took into account the different geopolitical situation of the post-Cold War era by setting national instead of bloc-based limits on conventional armed forces. NATO members refused however to ratify the treaty..." [0] What a surprise.

[0] https://en.wikipedia.org/wiki/Treaty_on_Conventional_Armed_F...