Bombing of Plaza de Mayo

The strike took place during a day of official public demonstrations to condemn the burning of a national flag allegedly carried out by detractors of Perón during the recent Corpus Christi procession.

[7] After his victory in the 1946 Argentine general election, President Perón had enacted many reformative policies that considerably changed Argentina, including embracing industrialization, nationalizing railroads, financing public works, and instituting material benefits for labor, such as higher wages.

His leadership style also drew heavy criticism from academics, clerics, and other elements of the international community for embracing censorship and cracking down on freedom of expression.

[10] On 16 June 1955, at 12:40 pm, a force of thirty Argentine Naval Aviation airplanes, consisting of 22 North American AT-6, five Beechcraft AT-11, and three Consolidated PBY Catalina flying boats took off from Morón Air Base.

[2] However, they were pushed back by members of the Regiment of Mounted Grenadiers from within the Casa Rosada and by Army troops marching from the sector of the Ministry of Finance, under the command of General Lucero.

[5] The defense of the Casa Rosada consisted of a mere two 12.7mm Browning M2 machine guns placed on the roof, while defenders on the lower floors only had access to small arms, including bolt-action Mauser 1909 rifles.

[5] Perón ordered his adjutant, Major Jose Ignacio Cialceta, to inform Di Pietro that a clash strictly between soldiers was taking place and therefore civilians were not to gather in Plaza de Mayo.

[15] Consequently, the bulk of the civilian casualties occurred when large numbers of mobilized workers arrived in Plaza de Mayo to defend the presidency of Juan Perón.

Gloster Meteor fighters suddenly arrived to bomb and strafe the large crowds of Peronist supporters exiting the central subway and gathering in the nearby streets and the immediate vicinity of the Presidential Palace, killing and wounding hundreds in the process.

[17] The rebel ground offensive began to wane around 15:00, as the marines surrounding the Casa Rosada's northern façade came under fire from army artillery units positioned in a building located at the intersection of Leandro N. Alem and Viamonte streets.

A squad of loyal Gloster Meteors took off and one of them shot down a rebel Navy AT-6 Texan over the Río de la Plata, scoring the first air-to-air kill of the Argentine Air Force.

Having run out of ordnance, one pilot dropped his auxiliary fuel tank as an ersatz incendiary bomb, which fell on the cars in a parking lot near the Casa Rosada.

[18] After heavy urban fighting, which included a false surrender incident, the besieged rebels finally opted for handing over the Ministry of the Navy to the Army units posted outside.

In September of that year, the bulk of the armed forces joined in a coup d'état known as the Revolución Libertadora, which overthrew President Perón and started a military dictatorship that lasted until the 1958 presidential elections, won by Arturo Frondizi of the UCRI.

[23] One of the rebel leaders, radical Miguel Ángel Zavala Ortiz, went on to serve as an official during the Revolución Libertadora dictatorship and was later appointed Minister of Foreign Affairs and Worship by President Arturo Illia in 1963.

General Franklin Lucero
Shrapnel-ridden outer wall of the Ministry of Economy, pictured in 2009
Monument to the victims of Plaza de Mayo Bombing