Exactly. Russia (or the USSR back then) allowed for the unification of Germany, under the condition that NATO would not expand an inch to the East. look today, there's Poland, Finland, the Baltics, Balkans, and Turkey, right on Russia's doorstep. NATO claims to establish peace, but they're bringing themselves closer and closer to Russia's red line.
You're a very intelligent person, there's not many out here who accept the truth.