Kids in Black

Opera Nazionale Balilla (ONB) was an Italian Fascist youth organization functioning, as an addition to school education, between 1926 and 1937.
The ONB was created through Mussolini's decree of April 3 1926, and was led by Ricci for the following eleven years. It included children between the ages of 8 and 18, grouped as the Balilla and the Avanguardisti. Later, a section named Figli della Lupa ("Children of the She-Wolf", alluding to the myth of Romulus and Remus; ages 6 to 8) was added.
The organization surpassed its purpose as a cultural institution that was intended to serve as the ideological counterpart of school, and served as a paramilitary group (training for future assignments in the Italian Army), as well as education. It carried out indoctrination with a message of Italian-ness and Fascism, training youths as "the fascists of tomorrow".
Male children enrolled wore a uniform adapted from that of the Blackshirts: the eponymous black shirt, the fez of Arditi tradition, grey-green trousers, black fasces emblems, and azure handkerchiefs (i.e.: in the national colour of Italy). During military exercises, they were armed with scaled-down version of Royal Italian Army service rifle, Moschetto Ballila.

Source: Wiki