Question: The Winter Line was a series of German and Italian military fortifications in Italy, constructed during World War II by Organisation Todt and commanded by Albert Kesselring,  was a German "Luftwaffe Generalfeldmarschall" during which event?
Sentence (from "Albert Kesselring"): Albert Kesselring (30 November 1885 – 16 July 1960) was a German "Luftwaffe Generalfeldmarschall" during World War II.
Relevant evidence: Yes