{no blocs, no federations - just places with people that live there.}
So what 'level' would you propose? A world regime like Russia, China, or N Korea?
The EU as a bloc of primarily Western Europeans but have expanded to the East to try and improve the livelihoods of Latvians, Romanians etc, encouraged by previous UK governments I would add.
The EU as a 'body' is not really set up as a military force in the way that the separate countries within it are. If, say the Russians were to reinvade Poland, then Poland can request assistance from other EU countries, be it diplomatic pressure from Brussels, or materials or military personnel etc.