Austro-Germanism is a political and cultural ideology that emphasizes the unity of the German people across the Austro-Hungarian Empire and the broader German-speaking regions of Europe. It advocates for the idea that Austria and Germany share a common heritage, language, and culture, promoting cooperation and integration among these areas. The concept gained prominence in the 19th and early 20th centuries, particularly during the rise of nationalism in Europe. Proponents believed that a closer alliance between Austria and Germany could strengthen their political and economic positions, while critics argued it could undermine the diverse identities within the Austro-Hungarian Empire.