The staff papers of the Luftwaffe expose the inner workings of the German Air Force's high command. These doctrines have been translated into English by James S. Corum and Richard R. Muller, two distinguished American scholars of air force history. Their work includes pre-World War I correspondence on aviation from General von Moltke, the first German aviation manual guidelines of 1913, World War I air support instructions, a 1920s study of air forces, the Luftwaffe Air War Doctrine of 1935, directives for officers, World War II tactical instructions, and more.