After long years of studying sources and literature, Werner Haupt presents the military history of one of the larger theatres of World War II.The completion of the history of ?Army Group North? is the result of the author's utilization of all German and and Russian literature, as well as those combat diaries and documents of the committed troop units that are available in German archives.In addition, the author was assisted in clearing up several questions by the advice of former members of the army group - from commanders to drivers.