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Karl-Heinz Ertel ( 26 November 1919 – 25 January 1993 ) was a Hauptsturmführer der Reserve , in the Waffen-SS during World War II who was awarded the Knight 's Cross of the Iron Cross , to recognize extreme battlefield bravery or successful military leadership by Nazi Germany during World War II .
 Karl-Heinz Ertel, Waffen-SS
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 Karl-Heinz Ertel, Waffen-SS