I come from the North-Eastern part that's called the Suwałki region (Suvalkiya) and it's interesting because even though its main city (Suwałki, my home town) is in Poland, the larger part of the region is in Lithuania. So we have some regional things that are a point of contention too. Like Lithuanians call Zeppelins the things that we call Kartacze and they eat them with sour cream while we eat them with bacon and we just cannot see eye to eye in that regard.

Also, in general, Polish-Lithuanian relationships are very complicated, especially in places like my home region.