Germany's High Seas Fleet in the World War is a book by Reinhard Scheer, Admiral in the Imperial German Navy, which deals with the campaigns of the famous German Fleet during the First World War. The High Seas Fleet, or Hochseeflotte, was the battle fleet of the German Imperial Navy and saw action during the Great War. In the first part of the book, Scheer deals with the first two years of the War, from the outbreak to the Battle of Jutland (Skagerrak). The second part covers the period from the Battle of the Jutland to the unrestricted U-boat warfare. It describes the Battle of Jutland and its aftermaths leading to the U-boat Campaign. The third and final part of the book deals with the U-boat Campaign, a naval campaign fought by German U-boats against the trade routes of the Allies.