Hitler at least had a population base to call on. Russia is a dying nation and from what I’ve read, oil revenues or no, Putin’s military is continuing to wither.
Conditions in Russia’s army are more brutal and corrupt than in soviet times and I firmly believe you can’t run a modern, high-tech army with unwilling conscripts in any case.
Putin beats his little chest and rattles his saber at the West while his supposed ally, China is quietly infiltrating siberia.
Putin will have to do something about the Siberian demographic changes, because there’s a lot of oil over there. Meanwhile, he’s trying to sit on restive Moslem populations (the smaller, concentrated ones) and play at being a world power in European diplomacy.