1864 second Schleswig war

After the failed revolution in 1849 the people´s ideas of the unified and democratic Germany did not disappear. In 1864 there were again discussions  about the control of the Schleswig-Holstein duchies. After  Denmark had written the Novembersettings including the duchies of Schleswig and Holstein, Prussia and Austria were angry and put a 48 hours long ultimatum to Denmark to recall the Novembersettings. Denmark ignored the demand and so a few days later, at the 1st February, german and austrian troups crossed into Schleswig.

The german nationalists supported 

Prussias attack ,bacause they wanted these provinces under german control.

The war lasted until October 1864. On 30^th October the peace treaty between Prussia, Austria and Denmark was signed. Denmark lost the provinces and now they belonged to the German Confederation.