Wikipedia (excerpts)

The Bersaglieri (Italian pronunciation: [bersaʎˈʎɛːri]) (Marksmen in English) are a corps of the Italian Army originally created by General Alessandro La Marmora on 18 June 1836 to serve in the Army of the Kingdom of Sardinia, later to become the Royal Italian Army. They have always been a high-mobility light infantry unit, and can still be recognized by the distinctive wide brimmed hat that they wear (only in dress uniform in modern times), decorated with black capercaillie feathers. The feathers are usually applied to their combat helmets. Another distinctive trait of the Bersaglieri is the fast jog pace they keep on parades, instead of marching.

Origins and history
The relatively poor Kingdom of Sardinia could not afford large numbers of cavalry, so a quick-moving infantry corps of marksmen were needed. These troops were trained to high physical and marksmanship standards. Like the French chasseurs à pied, a level of independence and initiative was encouraged so that they could operate in looser formations, in which direct command and control was not required. They fired individually and carried 60 rounds instead of the standard 40 rounds of traditional line infantry. The first uniform was black with brimmed hats, called "vaira". These were intended to defend the head from sabre blows.
The first public appearance of the Bersaglieri was on the occasion of a military parade on 1 July 1836. The First Company marched through Turin with the rapid, high-stepping gait (180 paces/minute) still used by the Bersaglieri in World War II and later. The modern Bersaglieri still run both on parade and even during barracks duty - on penalty of punishment if they do not. The new corps impressed King Charles Albert, who immediately had them integrated as part of the Piedmontese regular army.
Throughout the nineteenth century, under La Marmora’s leadership, the Bersaglieri filled the role of skirmishers, screening the slow-moving line and column formations, but acting as special shock troops if required. They were originally intended to serve as mountain troops, as well; the climber Jean-Antoine Carrel was a Bersagliere. When the Alpini Corps were created in 1872 a strong rivalry arose between the two elite corps.

World War I



'AVANTI ITALIA!': The War Illustrated', Vol.5, No.106, Aug., 1916

During World War I, the 12 Bersaglieri regiments were augmented by nine newly raised regiments and fought with distinction on the Italian Front. Of the 210,000 members of Bersaglieri regiments, 32,000 were killed and 50,000 wounded during the war. Italy's last surviving World War I veteran, Delfino Borroni, served in the 6th Bersaglieri Bologna. Another member who served (and was wounded) was Benito Mussolini.
A contingent of Bersaglieri was sent to participate in the Sinai and Palestine Campaign in 1917, when they were attached to the Egyptian Expeditionary Force commanded by General Edmund Allenby. Their "mainly political" role was to assert "hereditary ecclesiastical prerogatives in connection with the Christian churches at Jerusalem and Bethlehem."[1]