It was here at the hill of Dybbøl, Denmark lost the war to German in 1864.
The hill where the mill stood was a strategic defense point for Denmark. But the defense system was not well kept, so the Germans attack in 1864 ended after 34 days of battle with German victory.
The borderline between Denmark and Germany is then redrawn, and the result is that the Southern part of Jylland (to the river Kongeåen) becomes German. This means that many Danes are trapped in the wrong country and are forced to fight in the German wars against Denmark.
The border is redrawn to the current one in 1920, where German lost 1. world war.
Today the mill is rebuilt after it has been burned several times. In the mill you can see old photos of the battlefield. On the hill you can see the old cannons and there is a great view to the surrounding landscape.