 Umberto was seen as supportive of these efforts to depose Mussolini, but as Ciano (who had turned against Mussolini by this point) complained in his diary the prince was far too passive, refusing to make a move or even state his views unless his father expressed his approval first.On 10 July 1943, in Operation Husky, the Allies invaded Sicily.Just before the invasion of Sicily, Umberto had gone on inspection tour of the Italian forces in Sicily and reported to his father that the Italians had no hope of holding Sicily.