General Alfred Keller commanded Luftflotte 2 with a general nicknamed what by his troops?
Alfred Keller In September 1939, when the Second World War begun, the then General Alfred Keller commanded the 4th Air Corps during the invasion of Poland, assuming this command on 13 October 1939. The following campaigns, during campaigns against Norway, the Netherlands, Belgium and the Battle of France, he commanded Luftflotte 2 with General Albert Kesselring as his superior.
Obersturmführer Obersturmführer (] , "senior storm leader") was a Nazi Party paramilitary rank that was used in several Nazi organisations, such as the SA, SS, NSKK and the NSFK. Translated as “senior assault (or storm) leader”. The rank was akin in seniority to that of a "Oberleutnant" in the German Army and also the equivalent of 1st lieutenant in foreign armies.