The regiment belongs to the Italian Army's Alpini infantry speciality and is assigned to the Alpine Brigade "Taurinense".

For its service and sacrifice on the Eastern Front the 9th Alpini Regiment was awarded a second Gold Medal of Military Valor.

On 8 September 1943, the Armistice of Cassibile was announced and invading German forces disbanded the 9th Alpini Regiment.

The Combat Group "Legnano"fought on the allied side in the Italian campaign until the German surrender.

After the war the "L'Aquila" battalion was assigned to the 8th Alpini Regiment and based in Tarvisio in Friuli-Venezia Giulia.

[8][9][10][11] On 1 July 1921, the Royal Italian Army formed the command of the 9th Alpini Regiment in the newly annexed city of Gorizia.

On 10 June 1940, the day Italy entered World War II, the regiment was in Albania and its organization was as follows:[11][14] In September 1940, the 3rd Alpine Division "Julia" moved from Northern to Southern Albania and took up positions along the border with the Kingdom of Greece for the upcoming Italian invasion of Greece.

On 10 November, the "Julia" division was taken out of the line, but only four days later it had to return to the front in the Berat sector, where it came under heavy Greek attacks until 8 December.

[11][14] In April 1941, following the German invasion and Axis occupation of Greece, the division was transferred to the Corinth Canal area and occupied the Peloponnese.

[16] For its service and sacrifice on the Greek front between 28 October 1940 and 23 April 1941 the 9th Alpini Regiment was awarded a Gold Medal of Military Valor.

[2][8][11][14] Separately the Alpini Battalion "Val Leogra", which had been attached to the "Tridentina" division, was awarded a Silver Medal of Military Valor for its service and conduct on the Greek Front.

[8][11][14] On 1 April 1941, the regiment formed the Alpini Battalion "Vicenza bis", which was deployed to the Isonzo valley to fight Yugoslav partisans.

The corps was assigned to the Italian 8th Army, which was readied to be deployed in summer 1942 to the Eastern Front.

In preparation for the deployment to the Soviet Union the 9th Alpini Regiment's depot formed on 1 April 1942 the 83rd Cannons Company, which was equipped with 47/32 mod.

[11][14][18][19] In July 1942 the three alpine division arrived in Eastern Ukraine, from where they marched eastwards towards the Don river.

[11][14][17][18][20] On the evening of 17 January 1943, the Alpine Army Corps commander, General Gabriele Nasci, ordered a full retreat.

The 40,000-strong mass of stragglers — Alpini and Italians from other commands, plus German and Hungarians — followed the "Tridentina", which led the way westwards to the new Axis lines.

On the morning of 26 January 1943, the spearheads of the "Tridentina" reached the hamlet of Nikolayevka, occupied by the Soviet 48th Guards Rifle Division.

General Nasci ordered a frontal assault and by nightfall the troops of the "Tridentina" division had managed to break through the Soviet lines.

[11][14] In September 1944, the Italian Co-belligerent Army formed the Alpini Battalion "Abruzzi" in Piedimonte Matese, which was assigned on 1 October 1944 to the Special Infantry Regiment "Legnano".

The regiment then joined the Combat Group "Legnano", which was equipped with British materiel and assigned to the Polish II Corps.

The Combat Group "Legnano"fought on the allied side in the Italian campaign until the German surrender.

For its service and conduct in the Italian Campaign the Alpini Battalion "L'Aquila" was awarded a Silver Medal of Military Valor.

On 30 September 1975, the 8th Alpini Regiment was disbanded and the next day its battalions became autonomous units and were assigned to the Alpine Brigade "Julia".

From 15 March 2003 to 15 June 2003, the regiment deployed with NATO's International Security Assistance Force to Khost in Afghanistan.

In 2016 and 2017, the Abruzzo experienced a series of earthquakes and the troops of the 9th Alpini Regiment were repeatedly employed to support the affected civilian population.

To better serve the local population the 9th Alpini Regiment formed on 29 May 2017 the Multifunctional Battalion "Orta".

The maneuver support company is equipped with 120 mm mortars and Spike MR anti-tank guided missiles.