Churchill kind of had another go at Gallipoli with his theory about the "soft underbelly of Europe" in WWII. The German defence of Italy turned out to be anything but a soft underbelly, since the Italian geography is ideal for setting up a series of almost impregnable defensive positions.

My father was in the fighting in France, Belgium, and Germany, from D-Day plus 4 on. He has said many times that if the Allies had not had air supremacy it would not have been a good situation, given the effectiveness of the German tanks and other equipment the Allied forces were facing. He said that in his entire period of service, from Normandy to V-E Day, he never saw ONE German airplane overhead. He saw thousands of Allied aircraft, and they were routinely called in to smash German armour and dug-in positions.

He had, by the way, seen a great many German aircraft in 1940...over southern England. That was back when the Luftwaffe was still fully capable of mounting an offensive campaign in the West.