To put it bluntly, this was by design. much like Africa, and the Middle East the borders were drawn to make sure the ethnic groups couldn't unify making them Geography weak and unstable. Permanently making them subordinate to their Colonial masters. The Soviet Union may have collapsed but russia still had power over these regions but now that russia's army it's heavily suffering there's nothing to stop The Dominoes from falling
What is going on there? The whole region is on fire right now.