Prussia (Germany). Armee. Grosser Generalstab. Kriegsgeschichtliche Abteilung II
"The War Book of the German General Staff Being ""The Usages of War on Land"" Issued by the Great General Staff of the German Army"
Prussia (Germany). Armee. Grosser Generalstab. Kriegsgeschichtliche Abteilung II · 2016
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War (International law)World War, 1914-1918 -- Law and legislation -- Germany