North German Confederation

The North German Confederation was initially a German military alliance established in August 1866 under the leadership of the Kingdom of Prussia, which was transformed in the subsequent year into a confederated state (a de facto federal state) that existed from July 1867 to December 1870. A milestone of the German Unification, it was the earliest continual legal predecessor of the modern German nation-state known today as the Federal Republic of Germany. The Confederation came into existence following the Prussian victory in the Austro-Prussian War of 1866 over the lordship of two small Danish duchies (Schleswig-Holstein) resulting in the Peace of Prague, where Prussia pressured Austria and its allies into accepting the dissolution of the existing German Confederation (an association of German states under the leadership of the Austrian Empire), thus paving the way for the Lesser German version of German unification in the form of a federal state in Northern Germany. Construction of such state became a reality in August 1866, following the North German Confederation Treaty, initially as a military alliance only, while its first federal constitution establishing a constitutional monarchy with the Prussian king holding as the head of state the was adopted on 1 July 1867. Laws could only be enabled with the consent of the (a parliament based on universal male suffrage) and the Federal Council (, a representation of the states). During the initial three and a half years of the Confederation, a conservative-liberal cooperation undertook important steps to unify (Northern) Germany with regard to law and infrastructure. The designed political system and the political parties remained essentially the same also after 1870. Shortly after its inception, tensions emerged between the North German Confederation and the Second French Empire, which was ruled by the French Emperor Napoleon III. In Summer 1870, a dispute over a new king for Spain escalated into the Franco-Prussian War. At the time, the original Confederation had nearly 30 million inhabitants of whom 80% lived in Prussia, thus making up roughly 75% of the population of the future German Empire. Under these circumstances, the South German states of Baden, Hesse-Darmstadt, Württemberg and Bavaria previously opposed to the Confederation ultimately decided to join it.