Task: Question Generation
Input (English): Context : Wolfgang Kretzschmar (2 July 1907 -- 27 December 1944) was a German officer serving during World War II and recipient of the coveted Knight's Cross of the Iron Cross with Oak Leaves and Swords (German: Ritterkreuz des Eisernen Kreuzes mit Eichenlaub und Schwertern). 
Subject : Wolfgang Kretzschmar 
Relation : conflict
Output (English): In which war did Wolfgang Kretzschmar serve?