The case of Alsace and Lorraine

Alsace and Lorraine it is unknown why it belongs to Germany on HWW 25. As you know, before the war they belonged to FranceTreaty of Frankfurt:

• Established the frontier between the French Third Republic and the German Empire, which involved the ceding of 1,694 French villages and cities to Germany in:

• Alsace: the French departments of Bas-Rhin and Haut-Rhin, except for the city of Belfort and its territory;
• Lorraine: the French department of Moselle, one-third of the department of Meurthe, including the cities of Château-Salins and Sarrebourg, and the cantons Saales and Schirmeck in the department of Vosges.

• Gave residents of the Alsace-Lorraine region until 1 October 1872 to decide between keeping their French nationality and emigrating, or remaining in the region and becoming German citizens

Unfortunately, according to Call of War, they belong to Germany, which is a bit grotesque