Brazil, in 2022, assumed its 12th term as an elective member of the National Security
Council, demonstrating the country's active participation in global issues of peacekeeping
and national security. However, the Brazilian past demonstrates a history of internal and
international conflicts, which sometimes required the mediation of friendly countries for the
resolution and return to diplomacy between the countries involved. With this, the objective
of the work is to discuss the factors associated with Brazil's participation in the Security
Council of the United Nations - UN. The research was carried out based on a literature
review and a case study, in a survey of secondary data released by the Alexandre Gusmão
Foundation between 2007 and 2021. With the research, it was possible to understand that
Brazil, from the first contact with the countries that made part of the Peace Conferences
through multilateralism, proved to be an active, defender of international rights, of the
principle of equality, and claimant of its place in the Council. Engaged in all matters that
were his concern, his trajectory at the UN was, and still is, of great relevance to
peacekeeping and conflict resolution.