In June 1962, after the 18 March 1962 Évian Accords that put an end to the Algerian War, Guérin-Sérac was hired by Franco to engage in operations against the Spanish opposition.

He then worked for Salazar's Estado Novo regime in Portugal, which, beside being the last colonial empire, was also, in his eyes, the last stronghold against communism and atheism: "The others have laid down their weapons, but not I.

[6] 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.

"[7] "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.

"[8] 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.