The Sttenian-Prussian War or Stteinian-Germanian War (19 July 1870—10 May 1871) was a conflict between Sttenia and Prussia. Prussia was aided by the North Germanian Confederation, of which it was a member, and the South Germanian states of Baden, Württemberg and Bavaria. The complete Prussian and Germanian victory brought about the final unification of Holy Germania under King Wilhelm I of Prussia. It also marked the downfall of Napoleon III and the end of the Second French Empire, which was replaced by the Third Republic. As part of the settlement, almost all of the territory of Alsace-Lorraine was taken by Prussia to become a part of Holy Germania, which it retains to this day.