Denmark invades Germany after world war 2

BACKSTORY: after the first world war. Very strict restrictions were put on Germany's military via the treaty of Versailles. for example Germany had to reduce their military to 100.000 troops. they also had to give back land to alot of countries. One of these countries was Denmark. Germany gave back land in the Jutland peninsula that they had gauned from the brutal war in 1864. MY TIMELINE: in my timeline, Denmark isnt satisfied by the area of the land that they gained back and wanted more. So looking at Germanys much weakened military. They attack. THE PLAN FOR THE ATTACK: The plan for the attack, led by general Jensen called for troops to march into south schleswig ( the part of schleswig they hadn't gotten back) and to stop when they hit the Ejder river that runs into the kiel canal which throughout history had been a natural border between Germany and Denmark. THE ATTACK: On februrary 12th about 90.000 danish troops march south towards the Ejder river. Germany through spies and other intelligence had learned of the attack in advance and set up defenses on a hill just north of Flensborg with around 45.00 troops. As the dansih troops get nearer a request is made to the germans, if they surrender and draw the border through Flensborg they wont engage in battle. The Germans refuse. So the Danish army countinues its march toward the German defenses after about 2 hours of fighting the germans sue for peace their offer is that the border be drawn through Flensborg but go up at an angle so it would go through Nierkurcken. Dansih diplomats are able to get the border to go up at an angle but not so much as the Germans wanted so that it would go through Emmelsbüll-Horsbüll instead.. The Germans agree