Four months after the revolution in 1959, Cuba was still part of the Organization of American States (OAS), the island had not yet declared itself a socialist, and the figure of Fidel Castro was even sympathetic to some sectors that would later revile him. On May 1, he arrived at the Ezeiza Airport, and Hermes Quijada was the first to welcome him on behalf of President Arturo Frondizi. He immediately arrived in Buenos Aires, and the following day he gave a famous ninety-minute speech before the Commission of the 21 of the OAS in the building of the Secretariat of Industry, in his speech praised the American democracy, which had welcomed Latin American immigrants with decorum. A group of protesters received the leader of the Cuban revolution. The visit was not welcomed by the Argentine military. During the OAS Conference, meeting in Punta del Este in January 1961, Argentine Foreign Minister Miguel Ángel Cárcano opposed the exclusion of Cuba from the inter-American system. After the conference, Frondizi received Ernesto Guevara, Argentine representative from Cuba, at the Olivos residence.