I saw an interesting analysis of the USSR at the time of its fall. An economist visited Russia in the late 1980's (about the time the USSR was breaking up) and noted that stores in Moscow had goods stamped "IMPORTED" in Russian rather than a country of origin. This designated something made in a Soviet Republic outside of Russia itself (like Lithuania or Ukraine or Bellarus). The important thing was not WHERE it was made, but that it was not made in Russia. EVERYWHERE ELSE made better goods than Russia did! That is what the Merchant wanted to communicate.
The Economist noted, and history bore out, that the USSR was a donut shaped Economic Empire. In most economies, the POWER and POPULATION concentrate at the center and the fringes are weaker (compare the EAST COAST of the US to the Great Plains or Dakotas, or Germany to Scandinavia). In the USSR, Russia has most of the POLITICAL POWER and POPULATION, but all the ECONOMIC POWER flows into Russia from the more productive populations around it. Like Ancient Rome, it is an empire that needs constant expansion to pillage resources to support itself.
That is what we see happening. When the USSR broke apart, the surrounding countries thrived without Russia stealing resources to support itself. Russia, in contrast, discovered it had an army and technology and population that it could not support ... it was too inefficient. It was too dependent upon the countries that it had lost. It was the "hole" in the center of the economic donut. So Russia did what it needed to survive ... it recaptured its slaves to force them to support it.
Until and unless Russia dramatically changes its culture, it will either expand/enslave or it will collapse.