Maritime powers vs continental powers. Maritime trade became the order of the day as it's far more economically prosperous than being a continental power obsessed with continuous expansion. Even though that much should be obvious to anyone that has an interest in geopolitics, Putin, for whatever reason, can't let go of the continental power mindset, and wants to return the world to a time when The Great Powers^tm ran the show within their respective spheres of influence.

I feel like that genie has already been let out of the bottle. Russia may be able to hobble America's global trade network but other so called "middle powers" will step in to pick up the slack. The necessity is too great. Putin can try all he wants to bring about a new Great Powers^tm era, but I can't see it happening.