You have the cases exactly backward. While Russia does indeed "sleep next to" Latvia, Estonia, Lithuania, Finland, Sweden, Poland, Ukraine, Georgia, Chechnya, Bulgaria, Romania, Bulgaria with a huge knife, all of whom it has invaded and dominated in recent history. Russia's supposed security concerns with a region that has no military sufficient to invade, has a history of underwhelming military spending and a strong recent history of interdependence aimed at normalizing relationships is a pure putin lie aimed at justifying his war crime strategy to slake his lust for conquest.