After 1930, the successive governments continued industrial and agriculture growth and development of the vast interior of Brazil. Getúlio Vargas led a military junta that had took control in 1930 and would remain ruling from 1930 to 1945 with the backing of Brazilian military, especially the Army. In this period, he faced internally the Constitutionalist Revolt in 1932 and two separate coup d'état attempts: by Communists in 1935 and by local Fascists in 1938.
A democratic regime prevailed from 1945–64. In the 1950s after Vargas' second period (this time, democratically elected), the country experienced an economic boom during Juscelino Kubitschek's years, during which the capital was moved from Rio de Janeiro to Brasília.
Externally, after a relative isolation during the first half of the 1930s due to the effects of the 1929 Crisis. In the second half of the 1930's, there was a rapprochement with the fascist regimes of Italy and Germany. However, after the fascist coup attempt in 1938 and the naval blockade imposed on these two countries by the British navy from the beginning of World War II, in the decade of 1940 there was a return to the old foreign policy of the previous period. During the 1940's, Brasil joined the allied forces at Battle of Atlantic and in the Italian Campaign during WWII; in 1950's the country began its participation in the United Nations' peacekeeping missions with Suez Canal in 1956 and in the beginning of 1960's, during the presidency of Janio Quadros, the first attempts to break the automatic alignment (that had started in the 1940's) with the U.S.A.
The institutional crisis of succession for the presidency, triggered with the Quadros' resignation, coupled with other factors, would lead to the military coup of 1964 and to the end of this period.