Fritz_von_Loßberg--Walther_Model

Friedrich Karl "Fritz" von Loßberg (30 April 1868 – 4 May 1942) was a German colonel and later general, of the First World War. He was an operational planner, especially of defence, who served as chief of staff in the 2nd, 3rd and 4th armies. He was present at the Battle of the Somme, the Battle of Arras and the Third Battle of Ypres.
Loßberg was born in Bad Homburg in Hesse-Nassau. Erich Ludendorff referred to him as Loszberg in his memoirs. English-speaking sources often spell his name Lossberg. Loßberg was later to become "legendary as the fireman of the Western Front, always sent by the OHL to the area of crisis".He was the "foremost German expert on Defensive Warfare. Was made a floating chief of staff during crises, with Vollmacht the right to issue orders in a superior's name". In Military Operations France and Belgium 1917 part I, Cyril Falls, the British official historian, referred to him as "a very remarkable soldier". Loßberg was awarded the Pour le Mérite (the Blue Max) for his work on the Western Front on 9 September 1916 and oak leaves on 24 April 1917. Loßberg was one of the leading proponents of the system of defence-in-depth. Loßberg retired from the Reichswehr in 1926.