After all, a portion of the German army ultimately chose to surrender. Although the number of German prisoners was not one-fifth as many as the Italian prisoners, there were still tens of thousands of them.
As for Italy sending troops on its own to rescue the prisoners, Mussolini dared not even think about it.
In the North African region, more than half of the several hundred thousand Italian troops had become prisoners of war. Sending just a few hundred thousand soldiers would be nothing more than delivering another batch of prisoners to the British, French, and Australians.
If Italy had a military force of millions, even several millions to mobilize, wouldn't it be preferable to use these troops to attack France and achieve the ultimate victory in the war?