Selbstschutz is the name given to different iterations of ethnic-German self-protection units formed both after the First World War and in the lead-up to the Second World War.

The Silesian Uprisings were a series of three uprisings from August 1919 to July 1921 in Upper Silesia, which was part of the Weimar Republic at the time. Ethnic Polish and Polish-Silesian insurrectionists, seeking to have the area transferred to the newly founded Polish Republic, fought German police and paramilitary forces which sought to keep the area part of the new German state founded after World War I. Following the conflict, the area was divided between the two countries. The rebellions have subsequently been commemorated in modern Poland as an example of Polish nationalism. Despite central government involvement in the conflict, Polish historiography renders the events as uprisings reflecting the will of ordinary Upper Silesians rather than a war.