Kriegsbrauch im Landkriege (The Usages of War on Land) was a war conduct manual written by the General Staff of the German Army in 1902. Christian Meurer, one of Germany's foremost international lawyers, said in 1907 that the book was the authoritative statement of the laws of war by the organisation responsible for conduct in wartime. The book claimed that during the nineteenth century attempts to regulate warfare had "completely failed": Brigadier-General J. H. Morgan translated the book into English and it was published by John Murray in January 1915.