Gruppe (4th Group) of JG 51. He was awarded the Knight's Cross of the Iron Cross on 1 August 1941 following his 31st aerial victory and received the Knight's Cross of the Iron Cross with Oak Leaves on 16 September 1941 after 59 victories. The Oak Leaves grades to the Knight's Cross was Germany's highest military decoration at the time of its presentation to Nordmann.[Note 1]