Laranjeiras Palace. Press conference. From left to right: Marcelo Alencar, mayor of the city of Rio de Janeiro; Congressman Ulysses Guimarães; Mário Soares, Prime Minister of Portugal;  Leonel Brizola, Governor of the State of Rio de Janeiro. The Congress brought together 77 participants from 50 countries, under the chairmanship of former West German Chancellor Willy Brandt.