From: Basement of the Alamo
So there should be more northerly border for the Kaiser? It's too bad there aren't any mines or oil wells in that area.
No mineral resources I'm afraid. The area is best known for its dairy farms if memory serves. Lots of good cheeses.
The Germans were pretty strict in imposing the German language on the local Danes when they ruled the region. German was gradually substituted for Danish in the churches, the schools, and even in the playground. Forty years of dominance, secured by official favor, annoyed the area's Danes no end, and the question of rival nationalities in Schleswig, like those in Poland, became another source of trouble and weakness within the frontiers of the German empire.
Later, the Danish-German border became the only border alteration Germany suffered following World War I which was never challenged by Hitler. Some local Nazi hotheads and leaders agitated for it. However, Hitler vetoed any such step, out of a general German policy at the time to base the occupation of Denmark on a kind of accommodation with the Danish Government, and avoid outright confrontations with the Danes.
"They couldn't hit an elephant at this dist ...." Union General John Sedgwick, 1864