It's more of a reactive and opportunistic view of Russia I'd say, rather than one based on an clear will to conquer other nations. Which is how I think of the Kremlin mindset. They don't want to conquer the world, or Europe, or even the former Soviet space. They will however act opportunistically to recreate some semblance of a Russian empire when the option presents itself, or if they feel themselves forced into action.

Peak oil is not an energy crisis. It is a liquid fuel crisis.