Operation Valkyrie was a German World War II emergency continuity-of-government operations plan issued to the Territorial Reserve Army of Germany to implement in the event of a general breakdown in national civil order due to Allied bombing of German cities, or an uprising of the millions of foreign forced labourers working in German factories.

The Replacement Army was part of the Imperial German Army during World War I and part of the Wehrmacht during World War II. It was based within Germany proper and included command and administrative units as well as training and guard troops. Its primary role was to provide replacements for the combat divisions of the regular army.