It is most interested in maintaining its eastern neighbors as satellite states/imperial vassals, if possible. This was the state of affairs under Yanukovych and still is under Lukashenko. It was extremely unpopular in Western Ukraine and is continually growing more and more unpopular in Belarus because many people don't want to live in a corrupt vassal state.
While being a vassal of the West is far more toxic in many respects, at least the EU, unlike the Putinosphere, can claim to offer integration, prosperity and political representation. Those of us living in the west know that these are all false promises, but I can easily see how young people in a neo-Soviet vassal state like Belarus could fall for them.