The Barbarossa Decree (full title "Decree on the Jurisdiction of Martial Law and on Special Measures of the Troops"', formal designation C-50) is a document signed on 13 May 1941 by the German OKW Chief Wilhelm Keitel[2] during the preparation for Operation Barbarossa against the Soviet Union in World War II. The document concerns the German military conduct in relation to Soviet civilians and Soviet partisans.