 Fiebig's superior's, "Generaloberst" Wolfram von Richthofen’s "Luftflotte 4" held a 1,600 kilometer eastern frontage in July and concentrated its efforts on Stalingrad, with the air support missions in the Caucasus under Kurt Pflugbeil's "Fliegerkorps IV" and at the Voronezh battle being given a lower priority.Logistics for "Fliegerkorps VIII" received the highest preference, as Richthofen saw the capture of Stalingrad as the key to German success on the entire Eastern Front.Richthofen requested additional Junkers Ju 52 transport groups from "Oberkommando der Luftwaffe" and transferred Pflugbeil's groups, as well as his road transport companies, to the administrative authority of a new, specially created, "Stalingrad transport region".