Mariachi was heavily involved in cultural promotion as a way to create a unified Mexican identity after the end of the Mexican Revolution. One of these efforts was the promotion of mariachi as an international symbol of Mexican identity, first with radio and sound recordings and later with films. Mexico built a nationwide radio broadcasting network in the 1920s such as XEB and XEW, which began broadcasting mariachi music as a media production, rather than as a music for social events. This music was already being modified in part due to the advent of sound recording. For example, most son jaliscense
Bands (Italian Army irregulars) units employed by the Regio Esercito originated from a mercenary Arab force employed by the Ottoman Empire, called "Basci Buzuk", that was created in Eritrea by the Albanian adventurer Sagiak Hassan in the second half of the 19th century. In 1885, the Italian Colonel Tancredi Saletta, commanding officer of the first Italian troops involved in the conquest of Eritrea, enlisted Bashi-bazouks in the service of Italy. As lightly armed irregulars the Bands were able to perform duties for which regular Italian and colonial troops were unsuited and at lower cost. Locally recruited bands were employed in the conquest of Italian