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| 1955 coup d'état (Revolución Libertadora) | |
|---|---|
| Conflict | 1955 coup d'état (Revolución Libertadora) |
| Date | 16–23 September 1955 |
| Place | Buenos Aires, Argentina |
| Combatant1 | Juan Perón administration |
| Combatant2 | Coalition of Argentine Navy, Argentine Army factions, Revolutionary Movement |
| Commander1 | Juan Perón |
| Commander2 | Eduardo Lonardi, Pedro Eugenio Aramburu, Isaías Medina Angarita |
| Result | Overthrow of Juan Perón; establishment of military junta |
1955 coup d'état (Revolución Libertadora) was a military revolt that ousted Juan Perón from the presidency of Argentina in September 1955. The uprising combined elements of the Argentine Navy, dissident elements of the Argentine Army, and civilian opposition including sectors of the Argentine Catholic Church and conservative parties. The coup ended Perón’s second-term consolidation, precipitating a period of military rule that reshaped Argentine politics and polarized factions across South America.
By 1955 Argentina had experienced intense political polarization between supporters of Peronism and opponents including the Radical Civic Union, Conservatives, and sectors of the Argentine military. Juan Perón’s policies since 1946—social legislation tied to the CGT and economic measures involving the Central Bank of Argentina—provoked clashes with the Argentine Episcopate, Catholic Church, and business interests such as Compañía General de Radiodifusión and agricultural elites in the Pampean provinces. Internationally, Perón’s stance intersected with the Cold War context involving the United States, Soviet Union, and regional actors like Brazil and Chile. Tensions escalated after the 1954 expulsion of Jesuits and the July 1955 bombing of Plaza de Mayo by elements of the Argentine Navy, which intensified clashes between loyalist forces in the Fuerza Aérea Argentina and rebellious naval officers.
On 16 September 1955 dissident officers of the Argentine Navy initiated aerial bombardments and strikes against Casa Rosada and key Buenos Aires installations in coordination with rebellious units of the Argentine Army including the Garrahan Regiment and elements from the III Army Corps. Loyalist commanders such as Héctor José Cámpora (later prominent in Peronist politics) attempted to organize defense from Campo de Mayo and the Presidential Palace, while pilots associated with Fuerza Aérea Argentina faced splintered loyalty. Between 16 and 23 September clashes involved naval bombardments of the Argentine Navy Tower and street engagements in neighborhoods near Retiro and San Nicolás. Civilian actors including Confederación General Económica members and Centro de Estudios de la Nueva Argentina intellectuals provided logistical support to conspirators. After failed coup attempts earlier in 1955 including uprisings linked to opposition cells, the coordinated assault succeeded when Juan Perón sought exile rather than risk greater urban destruction, departing aboard naval vessels to Paraguay and later Spain.
Prominent conspirators included generals Eduardo Lonardi and Pedro Eugenio Aramburu, navy leaders such as Admiral Benjamín Gargiulo (naval conspirator) and air officers from the Fuerza Aérea Argentina dissident bloc. On the Peronist side, President Juan Perón and First Lady Eva Perón’s legacy loomed large despite Eva’s death in 1952; ministers like Juan Atilio Bramuglia and John William Cooke represented Peronist institutional wings. Political actors such as Arturo Frondizi (UCRI), Ricardo Balbín (Radical Civic Union), and labor leaders from the CGT navigated shifting alliances. Internationally notable figures who responded included Dwight D. Eisenhower, Juan Domingo Perón’s counterparts in Uruguay and Chile, and exiled Peronist interlocutors in Rome with the Vatican.
Domestic reaction split among provincial administrations in Cordoba, Santa Fe, and Mendoza where provincial governors either supported the junta or attempted neutrality. Labor mobilizations in La Plata and Rosario produced strikes and skirmishes led by CGT unions and Peronist cadres. The Argentine Episcopate publicly shifted toward the insurrectionists, while conservative press outlets such as La Nación endorsed the coup and Clarín reported on uprisings. Internationally, the United States government and United Kingdom diplomatic missions monitored the transition closely; regional capitals including Santiago, Chile and Montevideo issued statements balancing recognition and concern. Exiled Perón appealed to sympathizers across Europe and Latin America, prompting debates in the Organization of American States and among Cold War allies.
Following Perón’s exile the junta initially led by Eduardo Lonardi declared a process of “de-Peronization” that included the proscription of Peronist symbols, the banning of the Partido Peronista from elections, and the dismantling of many institutions associated with Perón such as state enterprises tied to Instituto Argentino de Promoción del Intercambio Cultural. Lonardi’s conciliatory approach soon made way for hardline rule under Pedro Eugenio Aramburu, who implemented purges of Peronist officials and reconfigured the Argentine judiciary and electoral law frameworks. The period saw repression including detentions of labor leaders and censorship of radio and press outlets; exiled Peronists formed opposition networks in Spain, Paraguay, and Venezuela. Subsequent elections and constitutional maneuvers involved figures like Arturo Frondizi and debates within the Radical Civic Union that shaped the 1958 return to civilian rule, while the legacy of the coup influenced military interventions in 1962 and 1966.
Historians debate whether the Revolución Libertadora constituted a cleansing of authoritarian tendencies or a conservative restoration that interrupted democratic development. Works by scholars in Universidad de Buenos Aires, Universidad Nacional de La Plata, and foreign institutions examine archival materials from the Archivo General de la Nación (Argentina) and oral histories from CGT veterans and military officers. Interpretations vary among Peronist historiography emphasizing popular rights and social gains, conservative narratives stressing order and anti-communism, and revisionist schools reconsidering the role of foreign influence and economic structure. The 1955 coup remains a focal point in analyses of Latin American military coups, influencing studies of civil-military relations, populism, and transnational Cold War dynamics across South America.
Category:1955 in Argentina Category:Coups d'état in Argentina Category:Juan Perón