How thousands of Italian soldiers switched sides to fight alongside the Allies in 1943
In short: Following the 1943 armistice, Italy underwent a dramatic military transformation. Former Royal Italian Army units reorganized as the Italian Co-belligerent Army, joining Allied forces against German troops and the Italian Social Republic. This force eventually comprised a significant portion of the 15th Army Group, proving their resolve in combat.
The Italian Co-belligerent Army emerged after King Victor Emmanuel III dismissed Benito Mussolini in July 1943 and signed an armistice with the Allies that September. Marshal Pietro Badoglio, the new leader, aligned the nation with the Allies, creating a complex internal conflict against the pro-Axis forces of the Italian Social Republic. This transition required a complete restructuring of existing military units that had previously fought for the Axis.
By late 1943, the I Motorized Grouping became the first unit to engage German forces at the Battle of San Pietro Infine. Commanded by General Vincenzo Dapino, the unit performed well enough to overcome initial Allied skepticism. By April 1944, this formation evolved into the Italian Liberation Corps under General Umberto Utili. These soldiers, who often faced heavy casualties, eventually integrated into British and American formations on the Gothic Line.
By late 1944, the army shifted toward a structure of combat groups, such as Legnano and Folgore, which were equipped with British gear, including Brodie helmets and Battledress. Beyond these combat units, the army maintained eight auxiliary divisions for infrastructure, logistics, and labor. At its peak, the force included up to 326,000 personnel, representing one-quarter of the total 15th Army Group strength and one-eighth of its combat power.
The logistical footprint of these forces was substantial, with units like the 212th Division managing rear-area operations across regions spanning from Naples to Pisa and Livorno. Despite the political turmoil of the era, these Italian troops maintained a consistent presence on the front lines, utilizing British weaponry like QF 25-pounder guns and ML 3-inch mortars until the end of the conflict in 1945.
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- Summary by Intellect · source: Italian Co-belligerent Army
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