West Parland and East Parland have been enemies for so long, there’s no remaining evidence of there having been a unified Parland ever existing.
Each claims to be the right and proper Parland, claiming sovereignty over the other, home of the National Church Of Parland, speakers of the Original Parland language, and keepers of the Parland style of cuisine.
Finally, in the dead of night, after so many years, the East Parland Army marched West… and the West Parland Army marched East.
They completely missed each other, and they conquered their enemies’ lands.
The citizens woke up confused and frightened.