Pan-Germanism is a political and cultural movement that emerged in the 19th century, advocating for the unification of all German-speaking peoples into a single nation. It sought to promote a sense of shared identity among Germans, regardless of their geographic location, and was influenced by nationalist sentiments across Europe. The movement gained prominence in the context of the German Empire and was associated with various political groups. It played a significant role in shaping the ideologies of the early 20th century, particularly during the rise of Nazi Germany, which used Pan-Germanist ideas to justify territorial expansion.