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"): Nicknamed "Smiling Albert" by the Allies and "Uncle Albert" by his troops, he was one of the most popular generals of World War II with the rank and file.
Relevant evidence: No