Helmut Kroeg (28 January 1914 – 22 April 1990) was a highly decorated Hauptmann in the Wehrmacht during World War II. He was also a recipient of the Knight's Cross of the Iron Cross. The Knight's Cross of the Iron Cross and was awarded to recognise extreme battlefield bravery or successful military leadership. He was also awarded the very rare Close Combat Clasp in Gold one of only 631 awards.
Berger, Florian (2004) (in German). Ritterkreuzträger mit Nahkampfspange in Gold [Knight's Cross Bearers with the Close Combat Clasp in Gold]. Vienna, Austria: Selbstverlag Florian Berger. ISBN 978-3-9501307-3-7.
Fellgiebel, Walther-Peer (2000) (in German). Die Träger des Ritterkreuzes des Eisernen Kreuzes 1939–1945 – Die Inhaber der höchsten Auszeichnung des Zweiten Weltkrieges aller Wehrmachtsteile [The Bearers of the Knight's Cross of the Iron Cross 1939–1945 — The Owners of the Highest Award of the Second World War of all Wehrmacht Branches]. Friedberg, Germany: Podzun-Pallas. ISBN 978-3-7909-0284-6.
Scherzer, Veit (2007) (in German). Die Ritterkreuzträger 1939–1945 Die Inhaber des Ritterkreuzes des Eisernen Kreuzes 1939 von Heer, Luftwaffe, Kriegsmarine, Waffen-SS, Volkssturm sowie mit Deutschland verbündeter Streitkräfte nach den Unterlagen des Bundesarchives [The Knight's Cross Bearers 1939–1945 The Holders of the Knight's Cross of the Iron Cross 1939 by Army, Air Force, Navy, Waffen-SS, Volkssturm and Allied Forces with Germany According to the Documents of the Federal Archives]. Jena, Germany: Scherzers Miltaer-Verlag. ISBN 978-3-938845-17-2.
1 Knight's Cross with Infanterie-Regiment 466 2 Knight's Cross with Grenadier-Regiment 3, Oak Leaves with Grenadier-Regiment 45 3 Knight's Cross with Sturm-Bataillon AOK 8