The common geopolitical interests - true as long as you believe Poland is more comfortable with the West rather than in "Eurasian Union". Nordic countries are way more liberal, but they are wary of Russia. Historically Russia was often in conflict with Poland. Scandinavian Peninsula can be a great obstacle to Russia if it wants to expand west. It threatens sea routes and airspace and it's only going to become more important as global warming makes the north more navigable (without icebreakers).

Hammer and anvil - alternate names for the location of Poland (and Ukraine) include Bloodlands(Timothy Snyder), crumple zone(Jacek Bartosiak). Russia and Germany are powerful states and many transport routes lead through Poland. The Carpathian mountains in the South and Baltic Sea in the north form a sort of a bottleneck. Timothy Snyder is of the opinion that central-east Europe had the great misfortune of lying right between two totalitarisms - fascism and communism.

This is a bit of contrast with Hungary, which is now completely inland and land transport is about 10x more expensive so it's not as good for trade.

Or do you mean the Finland? I can expand but you can find common points between Poland and Finland.