[3][4] With the Unification of Italy nearly complete the Royal Italian Army began to form new regiments in the annexed territories.

In 1895-96 the regiment provided seven officers and 258 enlisted for units deployed to Italian Eritrea for the First Italo-Ethiopian War.

At the time the 75th Infantry Regiment consisted of three battalions, each of which fielded four fusilier companies and one machine gun section.

In October of the same year the brigade was on the Karst plateau, where it fought in the Third Battle of the Isonzo on the slopes of Monte Sei Busi and in Cave di Selz.

In July 1916 the brigade operated at San Grado di Merna and in August it fought in the Sixth Battle of the Isonzo on Nad Logem.

In October 1917, during the Italian defeat in the Battle of Caporetto, the brigade fought at Zagradan Pass and on Bukova Ježa.

[2][5] After Caporetto the brigade was rebuilt and in April 1918 assigned to the II Army Corps, which was deployed to the Western Front in France.

In fall of 1918 the brigade participated in the Hundred Days Offensive and fought at Chemin des Dames.

For their conduct in France the two regiments of the Brigade "Napoli" were both awarded a Silver Medal of Military Valor.

[2][8][9] 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.

On 12 July 1943 British forces captured Floridia and most of the 75th Infantry Regiment as it was attempting to withdraw from the town.

[12] By 13 July 1943 an Allied landing north of Augusta outflanked the division, and inflicted heavy casualties.

The division's remaining personnel was ordered to move to Messina, from where the it was evacuated to Southern Italy on 11–14 August 1943.

The division was dissolved on 14 August 1943 in Melia southeast of Scilla in Calabria with the few survivors grouped into the 76th Infantry Regiment "Napoli".

[2][8][9] For its conduct and sacrifice between 10 and 13 July in Sicily the 75th Infantry Regiment was awarded a Silver Medal of Military Valor.

On 1O October 1949 the commander, staff, and flag of the 75th Infantry Regiment "Napoli" departed for Mogadishu.