With the proclamation of the Republic, Brazil adopted a constitution based on the United States, where the states have a large autonomy. The Corps of Police were renamed Public Forces ("Força Pública") and began to be administered by the states governors and became smaller regional armies, with infantry, cavalry, artillery, and later, even air forces. This became a treat to the national army and remained until the rise of Getúlio Vargas's dictatorial government in the 1930s, when he abolished states autonomy, after Constitutionalist Revolution and Estado Novo coup, with the Brazilian army beginning its control over states military polices and military firefighters corps - including the then "Federal District Military Police", which served the city of Rio de Janeiro during its days as the national capital - until 1960 -, alongside the Military Police of Rio de Janeiro State, which was separated from the city, until both organizations were merged, in 1975.