On 31 December 1861 the command was renamed 4th Bersaglieri Regiment, but continued to exert only administrative functions.

On 16 September 1883 the IV Battalion was transferred to the newly formed 11th Bersaglieri Regiment.

In 1895-96 the regiment provided 13 officers and 509 troops to help form the I, II, IV, and V provisional battalions, which were deployed to Eritrea for the First Italo-Ethiopian War.

On 1 October 1910 the regiment's depot in Turin formed the IV Cyclists Battalion.

Initially the Italo-Turkish War was fought in Libya, but on 4 May 1912 Italian forces landed in Kalithea Bay on Rhodes in the Aegean Sea.

The next day, on 16 May, the attack was renewed and in the afternoon the remaining Turkish troops surrendered.

After the conclusion of the war the XXVI and XXXI battalions remained in Rhodes on occupation duty, while the rest of the regiment returned to Turin.

On 24 May 1915, the day after Italy's entry into the war, the regiment operated on the Asiago plateau.

During the Sixth Battle of the Isonzo the regiment's IV Cyclists Battalion distinguished itself on 6 August by capturing Hill 85 near on the Karst plateau near Monfalcone.

In August 1917 the brigade fought in the Eleventh Battle of the Isonzo on the Banjšice plateau.

In 1935-36 the regiment formed a Motorcyclists Company, which was deployed to East Africa for the Second Italo-Ethiopian War.

The regiment then moved to Northern Albania, where it participated from 7 to 11 April 1941 in the Invasion of Yugoslavia and occupied Radolišta.

On 12 April the regiment was once more sent South and clashed with Greek forces at Korçë and then advanced to Borovë, where on 19 April the regiment's commanding officer Colonel Guglielmo Scognamiglio was gravely injured.

On 20 April the regiment reached Vllaho-Psillotarе on the Greek-Albanian border and crossed the bridge over the Sarantaporos into Greece.

Immediately after the announcement of the armistice invading German forces began to disarm and disband the regiment and its units, but the troops of the XXIX Battalion commandeered every vessel in the Split's harbour and sailed for Apulia in Southern Italy, which had already been liberated by the British 1st Airborne Division.

The XXXIII Battalion, which had been based on Corsica, had fought against retreating German forces after the announcement of the Armistice of Cassibile.

The battalion was then moved to Sardinia, before being transferred to mainland Italy, where it joined the 4th Bersaglieri Regiment.

The reformed regiment was assigned to the I Motorized Grouping, which fought on the allied side in the Italian Campaign.

On 18 April 1944 the I Motorized Grouping was expanded and renamed Italian Liberation Corps.

[4][8][9][10] On 24 September 1944 the Italian Liberation Corps was disbanded its units and personnel used to form the combat groups "Folgore" and "Legnano".

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

[4][2] Between 23 October 1983 and 24 January 1984 the battalion transferred a company with 6 officers, 12 non-commissioned officers, and 109 soldiers to the 3rd Bersaglieri Battalion "Cernaia", which was deployed to Lebanon as part of the Multinational Force in Lebanon.

[4] After the end of the Cold War Italian Army began to reorganize and draw down its forces and on 10 December 1989 the 26th Bersaglieri Battalion "Castelfidardo" was reduced to a reserve unit and the flag of the 4th Bersaglieri Regiment was transferred to the Shrine of the Flags in the Vittoriano in Rome.