What two countries joined to make Germany?

The two countries that joined to make Germany are Prussia and Austria. Otto von Bismarck, the Prussian Prime Minister, orchestrated a series of wars and diplomatic maneuvers to integrate the German states into a unified nation. The wars included the Austro-Prussian War of 1866 and the Franco-Prussian War of 1870-71. As a result, Prussia annexed various territories, including those of Austria, and the German Empire was proclaimed on January 18, 1871, in the Hall of Mirrors at the Palace of Versailles in France.