The year that fascist Italy betrayed Germany and Japan was on October 13, 1943.
Italy's government declares war on its erstwhile Axis ally Germany on October 13, 1943, and joins the fight on the side of the Allies. With the overthrow of Mussolini's regime and the fall of fascism in July
The biggest problem for Italy was its animosity for Austria-Hungary, Germany's principal ally. As a result, in the so-called Triple Alliance with the other two, Italy was the "odd man out." Benito Mussolini, the fascist prime leader who had allied with Nazi Germany in 1936, led Italy into the conflict.
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