"The First Schleswig War (German: Schleswig-Holsteinischer Krieg) was a military conflict in southern Denmark and northern Germany rooted in the Schleswig-Holstein Question, contesting the issue of ...
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who should control the mainly German-speaking Duchies of Schleswig, Holstein and Lauenburg. Ultimately, the Danish side proved victorious with the diplomatic support of the great powers.
The conflict is known as the Three Years´ War (Danish: Treårskrigen) in Denmark. It constitutes a major historical event in the national culture of Denmark. In Germany, the war is called the Schleswig-Holstein War (German: Schleswig-Holsteinischer Krieg) but also as the Schleswig-Holstein Uprising (German: Schleswig-Holsteinische Erhebung)." - (en.wikipedia.org 14.01.2022)
