From Sicily: An Island at the Crossroads of History, by John Julius Norwich (Random House, 2015), Kindle pp. 316-317:
When Germany invaded Poland on September 1, 1939, Mussolini declared his support for Hitler, with whom he had concluded the so-called Pact of Steel four months before. He did not immediately declare war—the Chief of the General Staff, Marshal Pietro Badoglio, having warned him that Italy simply did not have enough tanks, armored cars and aircraft. To get involved in the European conflict at this point would, said Badoglio, be tantamount to suicide. Nine months later, however, the situation had changed dramatically. Norway, Belgium and Holland had been invaded; France was falling. On June 10 Italy declared war. Mussolini had hoped to help himself to Savoy, Nice, Corsica, Tunisia and Algeria from the French, but to his disgust Germany signed an armistice establishing the collaborationist government under Marshal Pétain at Vichy, which retained control over southern France and all its colonies.
So far as North Africa was concerned, only Egypt was left; and in September 1940 the Duce sent a large Italian force across the Libyan border. The British troops stationed in Egypt were at first hopelessly outnumbered; their counterattack, however, proved far more successful than expected and resulted in massive numbers of prisoners. So decisive was the Italian defeat that Hitler was obliged to send out his Afrikakorps, under the command of General Erwin Rommel. Only then did the British lose the initiative, ultimately to regain it at the Battle of El Alamein in October–November 1942.
The story of the Desert War is not ours, but it exemplifies the several successive humiliations suffered by Italy between 1940 and 1943. Mussolini’s invasion of Greece in October 1940 once again forced Hitler to send troops to his rescue; and by the beginning of 1943 disaster threatened him from every side. Half the Italian troops serving in Russia had been annihilated; both his North African and his Balkan adventures had been dismal failures. The Italians had had enough. Then, in July 1943, the Allies launched an operation which, as well as giving them a foothold in Europe, promised to remove Mussolini from the scene for good. They invaded Sicily.
For Sicily, hitherto, the war had been disastrous. As an island, it had suffered even more acutely than the rest of Italy. The ferryboats to the mainland were disrupted; the export market largely disappeared, while imports became irregular and uncertain; sometimes the Sicilians had found themselves with virtually nothing to eat but their own oranges. The rationing system was a bad joke; the black market reigned supreme. For the Mafia, on the other hand, conditions could hardly have been better. With a good deal of help from its branches in New York and Chicago, in the last years of peace it had already begun a swift recovery from the Mori reign of terror; and by 1943, whatever Mussolini might have said or believed, it was flourishing.
American intelligence officers, somewhat better informed than the Duce, understood that for the projected invasion to be successful it was vitally important to have the Mafia firmly on the Allied side. They therefore made careful approaches to the dominant boss of gangland crime in the United States, a Sicilian named Salvatore “Lucky” Luciano. He had in fact been in prison since 1936 on compulsory prostitution charges, but was still very much in command. In late 1942, after long discussions, the two sides struck a deal. Luciano would have his sentence commuted; in return, he made two promises. The first was that his friend Albert Anastasia, who ran the notorious Murder Inc. and who also controlled the American docks, would protect the waterfront and prevent dockworker strikes for the duration of hostilities. The second was that he, Luciano, would contact other friends in Sicily, who would in turn ensure that the invasion would run as smoothly as possible.
Far Outliers 