I wonder if given all the news of the day (Several Russian attack drones being shot down after flying into Polish airspace) and the general expectation that Russia+Belarus will at some point attack the Baltic states, would it make sense for Poland, Lithuania, Latvia, and Estonia to have a sub-NATO, cross-border, joint defense structure and posture? So that Putin wouldn’t think he could just pick off one Baltic state easily at a time and count on the US under Trump to veto article 5 proceedings (does NATO require unanimity in votes like the EU? is it a voting matter at all?). It would no doubt help to have the heft of the Polish tank and armored forces standing behind the Baltic lines of fortification not just their own rather small militaries (although they have the conscript troops but no budget magic can make the heavy metal bulk appear on the balance sheet). Come to think of it this should probably be a Pentad with Finland too, not a Quartet. The integrated forces of these five against their common adversary/aggressor state would perhaps be a more potent deterrent than each of them under the looser banner of NATO.
Lost in Mist 