The Alpan Empire is a nation from Asdf Mapping's series. It was the main antagonist of World war 3.
It is named after the area it is located, the Alps.
Baltorus and the Alpan Empire served as the main antagonists in Asdf Mapping's Season 1 of his mapping series.
The Alpan Empire will also be an antagonist in ToN and makes its debut in Episode 5.