Johann-Otto Krieg was a Kapitänleutnant with the Kriegsmarine

Kriegsmarine

The Kriegsmarine was the name of the German Navy during the Nazi regime . It superseded the Kaiserliche Marine of World War I and the post-war Reichsmarine. The Kriegsmarine was one of three official branches of the Wehrmacht, the unified armed forces of Nazi Germany.The Kriegsmarine grew rapidly...

 during World War II

World War II

World War II, or the Second World War , was a global conflict lasting from 1939 to 1945, involving most of the world's nations—including all of the great powers—eventually forming two opposing military alliances: the Allies and the Axis...

. He first served as 2nd watch officer on U-81 then under the command of Friedrich Guggenberger

Friedrich Guggenberger

Friedrich Guggenberger was a German U-boat commander of the Second World War, and was highly successful during this period. From November 1940 until his capture in July 1943, he sank 17 ships for a total of and damaged another for . He was also responsible for sinking the British aircraft carrier...

 before taking command of the U-boat. He was born in Lommitz in the district of Hirschberg

Hirschberg

The German word Hirschberg is composed of Hirsch and Berg . It may refer to:* several places in Europe, including:** Hirschberg, Thuringia, Germany.** Hirschberg, Rhineland-Palatinate, Germany....

/Silesia

Silesia

Silesia is a historical region of Central Europe located mostly in Poland, with smaller parts also in the Czech Republic, and Germany.Silesia is rich in mineral and natural resources, and includes several important industrial areas. Silesia's largest city and historical capital is Wrocław...

. He later served in the Bundesmarine of the Bundeswehr

Bundeswehr

The Bundeswehr consists of the unified armed forces of Germany and their civil administration and procurement authorities...

. During World War II he was awarded the Knight's Cross of the Iron Cross

Knight's Cross of the Iron Cross

The Knight's Cross of the Iron Cross was a grade of the 1939 version of the 1813 created Iron Cross . The Knight's Cross of the Iron Cross was the highest award of Germany to recognize extreme battlefield bravery or successful military leadership during World War II...

 for his command of the Kleinkampfflottille 361.

Awards

• Iron Cross
  Iron Cross
  The Iron Cross is a cross symbol typically in black with a white or silver outline that originated after 1219 when the Kingdom of Jerusalem granted the Teutonic Order the right to combine the Teutonic Black Cross placed above a silver Cross of Jerusalem....
  
   (1939)
  • 2nd Class (23 September 1941)
  • 1st Class (13 March 1942)
• U-boat War Badge
  U-boat War Badge
  The U-Boat War Badge was a German war badge that was awarded to U-boat crew members during World War I and World War II.-History:The U-boat War Badge was originally instituted during the First World War on February 1, 1918. It was awarded to recognize U-boat crews who had completed three war patrols...
  
   (1939) (23 September 1941)
• Wound Badge
  Wound Badge
  Wound Badge was a German military award for wounded or frost-bitten soldiers of Imperial German Army in World War I, the Reichswehr between the wars, and the Wehrmacht, SS and the auxiliary service organizations during the Second World War. After March 1943, due to the increasing number of Allied...
  
   (1939) in Black (17 April 1945)
• Italian War Merit Cross
  Croce di Guerra
  The Croce di Guerra al Valor Militare is an Italian decoration for military valour.- Past recipients :* Edouard Izac, Lieutenant, United States Navy* Douglas MacArthur, General, United States Army...
  
   (30 March 1942)
• German Cross
  German Cross
  The German Cross was instituted by Adolf Hitler on 17 November 1941 as an award ranking higher than the Iron Cross First Class but below the Knight's Cross of the Iron Cross respectively ranking higher than the War Merit Cross First Class with Swords but below the Knight's Cross of the War Merit...
  
   in Gold (19 November 1943)
• Bewährungsabzeichen der Kleinkampfmittel (Small Units Badge) (December 1944)
• Knight's Cross of the Iron Cross
  Knight's Cross of the Iron Cross
  The Knight's Cross of the Iron Cross was a grade of the 1939 version of the 1813 created Iron Cross . The Knight's Cross of the Iron Cross was the highest award of Germany to recognize extreme battlefield bravery or successful military leadership during World War II...
  
   on 8 July 1944 as Oberleutnant zur See and chief of Kleinkampfflottille 361