 The Italian plans called for the "Regio Esercito" to reach the Rhone river valley, which the Italians came nowhere close to reaching, having penetrated only a few miles into France.After the capitulation of France, Mussolini kept Umberto inactive as Army commander.In the summer of 1940, Umberto was to command a planned invasion of Yugoslavia, but Mussolini subsequently cancelled the invasion of Yugoslavia in favor of invading Greece.