What is Russia's current strategy to gain control over Ukraine?

Russia is now insisting on immediate elections in Ukraine as a strategic move to gain control. With half of Ukraine's population abroad and many others serving on front lines, the chaotic situation creates ideal conditions for Russia to manipulate the electoral process. Under these circumstances, it would be relatively easy for Russia to stage elections and install a puppet regime, effectively conquering Ukraine through political means rather than military force. This approach would allow Russia to gain control without having to return with tanks and weapons in the future, representing a dangerous threat to Ukrainian sovereignty.