Stefano Delle Chiaie was born in Caserta (Italy). He was a member of the Italian Social Movement (MSI) and the far-right Orinde Nuovo, and later founded the National Avangoardia. In Italy, on the one hand, it was dedicated to perpetrating attacks on groups and people on the left. On the other hand, infiltrate groups on the radical left, promote attacks or organize them, among other things. The Piazza de Milan was investigated by the Fontana attack, for example, but was declared innocent — 17 people died in Piazza Fontana; the action that the State attributed to the Anarchist groups was an act of dirty war that was later clarified. In the Basque Country, the name of Delle Chiaie is closely related to the murders of Montejurra (Navarra).

Historian Josu Chueca published in ARGIA a comprehensive research report on the events of Montejurra in 1976, where he reported on Delle Chiaie: "As a result of murders in Italy and the failure of the 1971 coup d'état by Valerio Borghes, he took refuge in Spain and pioneered the relocation of many other Italian fascists. For example, at SECED, created by Carrero Blanco's order, they were given housing and dirty work. From 1975 onwards the dirty war with the acronym BVE and ATE in Iparralde was in his hands.” It has also been linked to the Gladio and Condor networks, promoted by groups and far-right governments around the world.

Delle Chiaie was arrested in Caracas, Venezuela, in 1989, and deported to Italy, to be tried by the courts. He was also then declared innocent. Several facts were investigated in America.

Protagonist in Montejurra

Delle Chiai participated in the 1976 assassinations of Montejurra with numerous fascist militants. Six months after Franco's death, the attack on the Carlists resulted in several injuries and two deaths. It was carried out by far-right groups and paramilitary militants with the support or support of the devices of the Spanish State. Some of the mercenaries who were in Montejurra subsequently moved to BVE or GAL.

The state explained what happened in Montejurra as a conflict between the different tendencies of Carlism. According to Josu Chueca: “It was not a confrontation between reactionary and progressive carlism, but a dirty operation of the State’s special services. The path of self-managed socialism and democrats was thus intended to bend the large branch of carlism.”