The regiment is the engineer unit of the Alpine Brigade "Julia" and specializes in mountain combat.

During the same year the regiment's companies fought in the Sardinian campaign in central and southern Italy and in 1866 in the Third Italian War of Independence.

After the announcement of the Armistice of Cassibile on 8 September 1943 the regiment was disbanded by invading German forces.

The battalion was based in Bolzano and assigned to the 4th Alpine Army Corps's Engineer Command.

[6][5][8] The regiment's anniversary falls, as for all engineer units, on 24 June 1918, the last day of the Second Battle of the Piave River.

On 12 July 1859, the war ended with the Armistice of Villafranca, which called for the rulers of the occupied territories to be restored to their thrones.

However, neither the Kingdom of Sardinia nor the Sardinian installed governments in the occupied territories wished for a return of the rulers.

On 30 November 1859, the Duchy of Parma and Piacenza, the Duchy of Modena and Reggio, and the Papal Legations of the Romagne were united under the Royal Government of Emilia, which, on 1 January 1860, was redesignated as the Royal Provinces of Emilia.

On 11 and 12 March 1860, the Royal Provinces of Emilia and the Grand Duchy of Tuscany voted in a plebiscite for annexation by the Kingdom of Sardinia.

Immediately after its formation, Garibaldi's Expedition of the Thousand triggered the Sardinian campaign in central and southern Italy, which led to the Siege to Gaeta.

[5][6][9] After the annexation of the Kingdom of the Two Sicilies the 2nd Sappers Regiment provided troops for the suppression of the anti-Sardinian revolt in Southern Italy.

During the same year the regiment provided six officers and 243 enlisted for units deployed to Eritrea for the First Italo-Ethiopian War.

[5][6] In April 1919, the regiment's LII Engineer Battalion was assigned to the Royal Italian Army's Expeditionary Force in the Eastern Mediterranean, which on 29 April 1919 occupied Antalya, and on 11 May 1919 Fethiye, Bodrum and Marmaris in Anatolia.

Italy claimed the area as its sphere of influence as per the Agreement of Saint-Jean-de-Maurienne, which partitioned the Ottoman Empire.

[5][11] During World War II the regiment's depot in Casale Monferrato mobilized the following units:[5] On 10 June 1940, the day Italy invaded France, the 5th Engineer Grouping was assigned to the 4th Army.

[12][13][14] 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" division, which led the way westwards to the new Axis lines.

The retreat through the frozen steppe and constant skirmishes with Soviet forces decimated the Alpine Army Corps, which barely escaped annihilation during the Battle of Nikolayevka.

In late January 1943, the remnants of the Alpine Army Corps reached Axis lines.

On 11 February 1943, the survivors of the "Cuneense" division were counted and just 139 of the 1,240 men of the IV Mixed Engineer Battalion had reached Axis lines.

[15] For its bravery and sacrifice in the Soviet Union the IV Mixed Engineer Battalion was awarded a Silver Medal of Military Valor, which today is affixed to the flag of the 2nd Engineer Regiment and depicted on the regiment's coat of arms.

[1][8][12][13] In the evening of 8 September 1943, the Armistice of Cassibile, which ended hostilities between the Kingdom of Italy and the Anglo-American Allies, was announced by General Dwight D. Eisenhower on Radio Algiers and by Marshal Pietro Badoglio on Italian radio.

Germany reacted by invading Italy and the 2nd Engineer Regiment was disbanded soon thereafter by German forces.

The regiment was disbanded by invading German forces after the announcement of the Armistice of Cassibile on 8 September 1943.

On 1 July 1954, the V Pioneers Fortification Battalion moved from Sterzing to Orcenico Superiore, where it joined the 3rd Engineer Grouping.

[6][8] After the August 2016 earthquake in Central Italy the regiment's companies deployed to the area to assist in the recovery efforts and to provide engineering services to the affected communities.