Formed in 1862 and originally named for the city of Palermo the regiment is part of the Italian Army's infantry arm.

The regiment had just arrived in Apulia in southern Italy, when the Armistice of Cassibile was announced on 8 September 1943.

In 1895-96 the regiment provided nine officers and 249 enlisted for units deployed to Italian Eritrea for the First Italo-Ethiopian War.

At the time the 68th Infantry Regiment consisted of three battalions, each of which fielded four fusilier companies and one machine gun section.

In November of the same year the brigade was on the Karst plateau, where it fought in the Fourth Battle of the Isonzo, with the 68th Infantry Regiment deployed in San Martino del Carso.

In May 1917 the brigade fought in the Tenth Battle of the Isonzo for the summit of Sveta Gora near Gorizia.

In October and November 1917 the brigade fought rearguard actions during the Italian retreat after the Battle of Caporetto.

On 13 September 1918 the brigade was shipped from Taranto to Vlorë in Albania to participate in the last offensive on the Macedonian front.

For its conduct during the war the two regiments of the Brigade "Palermo" were both awarded a Bronze Medal of Military Valor.

In 1935-36 the regiment provided 5 officers and 95 enlisted for units deployed for the Second Italo-Ethiopian War.

[2][6][9][10] At the outbreak of World War II the regiment consisted of a command, a command company, three fusilier battalions, a support weapons battery equipped with 65/17 infantry support guns, and a mortar company equipped with 81mm Mod.

In early January 1941 the division was transferred to Albania to reinforce the Italian front in the Greco-Italian War.

After the Armistice of Cassibile was announced on 8 September 1943, some units were already at Brindisi and Francavilla Fontana, while others were stranded in Bologna or in locations on the way to their destination.

[2][6][10][11] On 27 January 1944 the 68th Infantry Regiment "Legnano", which at the time consisted of two battalions, replaced the 67th Motorized Infantry Regiment "Legnano" in the Italian Co-belligerent Army's I Motorized Grouping, which had been fighting on the allied side in the Italian campaign since September 1943.

[2][12][13] On 24 September 1944 the II Brigade of the Italian Liberation Corps was reorganized and renamed Combat Group "Legnano".

[2][13] The Combat Group "Legnano" was assigned to the Polish II Corps on the left of the British 8th Army near the river Idice.

In March 1945 the combat group fought along the Idice river and in April in the Battle of Bologna.

[2][13] For its conduct during the Italian campaign the regiment was awarded a Silver Medal of Military Valor.

By the 1960s the 68th Infantry Regiment "Legnano" had formed the IV Mechanized Battalion and an anti-tank company.

On the same date, the regiment's IV Mechanized Battalion in Monza became an autonomous unit and was renamed 67th Mechanized Infantry Battalion "Montelungo" and assigned the flag and traditions of the 67th Infantry Regiment "Legnano".