[7] On 11 January 1943 the army's General Staff ordered to transform the Nembo in a triangular division and therefore on 1 February 1943 the 183rd Infantry Regiment "Nembo" with the XV, XVI, and VIII/bis paratrooper battalions was raised by the Royal Air Force Paratroopers School in Viterbo.

[8] In early June 1943, the bulk of the division was transferred to Sardinia, while the 185th Infantry Regiment "Nembo" and the III Paratroopers Artillery Group were detached.

In Sardinia, the division was assigned to XIII Army Corps, which was responsible for the defence of the southern half of the island.

[10] The tactical groupings and groups were named after their commanders and based at the following locations:[10] The announcement of the Armistice of Cassibile on 8 September 1943 and the total lack of communication, orders or news from Rome led to a split in the division: The XII Paratroopers Battalion of the 184th Infantry Regiment "Nembo" decided to side with the Germans.

Together with individual soldiers, the battalion began to retreat with the German 90th Panzergrenadier Division towards Corsica.

[10] The division's Chief of Staff Lieutenant Colonel Alberto Bechi Luserna followed the mutinous troops to try to convince them to return to their positions and respect the chain of command.

[11][12][10] Following these events, the Armed Forces Command Sardinia ordered the XIII Army Corps to keep the division under strict surveillance and away from combat operations.

[10] In January 1944 the 184th Artillery Regiment returned to mainland Italy, where its two groups were equipped with more powerful 75/27 field guns respectively 100/22 howitzers.

[8] In August 1944 the regiment received a third group equipped with British QF 6-pounder anti-tank guns.

During the battle the commander of the battalion, Lieutenant Colonel Giuseppe Izzo, was gravely injured and when he was transported to the rear he was immediately awarded the American Distinguished Service Cross, making him the only Italian recipient of the award in all of World War II.