According to the magistrate Guido Salvini , in charge of the investigations concerning the 1969 Piazza Fontana bombing , " Guido Giannettini had contacts with Yves Guérin-Sérac in Portugal ever since 1964 . " It was within this context that in 1965 he founded , along with Italian neofascist Stefano Delle Chiaie , Aginter Press , a secret anti-communist army , with the support of both the PIDE and the U.S. Central Intelligence Agency . A pseudo-press agency , " It ... set up training camps , in which it instructed mercenaries and terrorists in a three-week course in covert action techniques , including hands-on bomb terrorism , silent assassination , subversion techniques , clandestine communication and infiltration , and colonial warfare . " " During this period , disclosed Guérin-Sérac , we have systematically established close contacts with like-minded groups emerging in current and former colonial powers Italy , Belgium , Germany , Spain and Portugal , for the purpose of forming the kernel of a truly Western League of Struggle against Marxism . " On 31 January 1968 , Guérin-Sérac met Pino Rauti , then leader of '' Ordine Nuovo '' , who would rejoin the fascist Italian Social Movement ( MSI ) the following year . In the 1970s , Guérin-Sérac was in contact with Leo Negrelli , former chief press attaché of the failed German puppet state , the Italian Social Republic
Piazza Fontana bombing
Piazza Fontana bombing
Yves Guérin-Sérac