Josef Zwernemann was a German Luftwaffe military aviator during World War II and a fighter ace credited with 126 enemy aircraft shot down in over 600 combat missions. The majority of his victories were claimed on the Eastern Front, with ten aerial victories claimed over the Western Front during the Battle of Britain and in Defense of the Reich.

Jagdgeschwader 52 was a German World War II fighter Geschwader (wing) that exclusively used the Messerschmitt Bf 109 throughout the war. The unit originally formed near Munich in November 1938, then moved to a base near Stuttgart. JG 52 became the most successful fighter-Geschwader of the war, with a claimed total of more than 10,000 victories over enemy aircraft during World War II. It was the unit of the top three scoring flying aces of all time, Erich Hartmann, Gerhard Barkhorn and Günther Rall.