Aginter Press, also known under the name Central Order and Tradition (Portuguese: Ordem Central e Tradição), was an international anti-communist mercenary organization disguised as a pseudo-press agency and active between 1966 and 1974. Founded in Lisbon, Portugal in September 1966 under António de Oliveira Salazar's Estado Novo, Aginter Press was directed by Captain Yves Guérin-Sérac, who had taken part in the foundation of the OAS in Madrid, a paramilitary group which fought against Algerian insurgents towards the end of the Algerian War (1954–1962). Aginter Press trained its members in covert action techniques, including bombings, silent assassinations, subversion techniques, clandestine communication and infiltration and counter-insurgency.