The Zika virus outbreak erupted in Brazil in 2015 and spread to dozens of countries in just a few months. There is no vaccine, treatment or cure for this virus that is now a sexually transmitted disease and causes microcephaly in babies. While scientists work to develop the vaccine, 500,000 tourists get ready to travel to Rio de Janeiro for the 2016 Olympic Games. Brazil has struggled to eliminate Aedes Aegypti, the mosquito vector of Zika and several others viruses, for the last 30 years. As the outbreak erupted on the eve of the Olympics, it globally exposed Brazil’s deficient healthcare and sanitation systems and lasting poverty and inequality gaps. It also happened in the wake of a severe political and economic crisis, which determined the state’s response to fight the virus.  This paper examines the role of military forces as Brazil’s response to contain the Zika virus through three perspectives: 1) Brazil’s ambition to strengthen its role as a humanitarian superpower; 2) Brazil’s shift from a socially conscious approach to a global health issue (the case of HIV) to a forceful response (Zika); and 3) Brazil’s attempt to recover leadership, both internally and globally, threatened by the current crisis.