Tenentism () was a political philosophy of junior army officers (, , "lieutenants") who significantly contributed to the
Brazilian Revolution of 1930
The Revolution of 1930 () was an armed insurrection across Brazil that ended the First Brazilian Republic, Old Republic. The revolution replaced incumbent president Washington Luís with defeated presidential candidate and revolutionary leader ...
that ended the
First Brazilian Republic
The First Brazilian Republic, also referred to as the Old Republic (, ), officially the Republic of the United States of Brazil, was the Brazilian state in the period from 1889 to 1930. The Old Republic began with the coup d'état that deposed ...
.
Background
The first decades of the 20th century saw marked economic and social change in Brazil. With industrialization on the rise, the
federal government
A federation (also called a federal state) is an entity characterized by a political union, union of partially federated state, self-governing provinces, states, or other regions under a #Federal governments, federal government (federalism) ...
— dominated by the coffee oligarchs and the old order of
''café com leite'' politics and ''
coronelismo'' — came under threat from the political aspirations of new urban groups: the proletariat, government and
white-collar worker
A white-collar worker is a person who performs professional service, desk, managerial, or administrative work. White-collar work may be performed in an office or similar setting. White-collar workers include job paths related to government, co ...
s, merchants, bankers, and industrialists. In parallel, growing prosperity encouraged a rapid rise of a new working class of Southern and Eastern European immigrants who contributed to the growth of
trade unionism
A trade union (British English) or labor union (American English), often simply referred to as a union, is an organization of workers whose purpose is to maintain or improve the conditions of their employment, such as attaining better wages ...
,
anarchism
Anarchism is a political philosophy and Political movement, movement that seeks to abolish all institutions that perpetuate authority, coercion, or Social hierarchy, hierarchy, primarily targeting the state (polity), state and capitalism. A ...
, and
socialism
Socialism is an economic ideology, economic and political philosophy encompassing diverse Economic system, economic and social systems characterised by social ownership of the means of production, as opposed to private ownership. It describes ...
in Brazil. In the post-
World War I
World War I or the First World War (28 July 1914 – 11 November 1918), also known as the Great War, was a World war, global conflict between two coalitions: the Allies of World War I, Allies (or Entente) and the Central Powers. Fighting to ...
period, Brazil saw its first wave of general strikes and the establishment of the
Communist Party in 1922.
A new class of junior army officers () had emerged. They were trained in European war standards and believed themselves superior to their senior officers who still held antiquated ideas of the past. In addition, various senior officers had become complacent or sided with the government and its political structure, which sparked criticism from the ''tenentes''.
Meanwhile, the divergence of interests between the coffee oligarchs and the burgeoning, dynamic urban sectors was intensifying. According to historian
Benjamin Keen, the task of transforming society "fell to the rapidly growing urban bourgeois groups, and especially to the middle class, which began to voice even more strongly its discontent with the rule of the corrupt rural oligarchies". In contrast, despite a wave of general strikes in the post-war years, the labour movement remained small and weak, lacking ties to the peasantry, who constituted the overwhelming majority of the Brazilian population. As a result, rather disparate and disjointed social reform movements cropped up in the 1920s.
July 1922: the first revolt

What became known as the ''tenentist'' movement came to public notice on 5 July 1922 when a group of young army officers began a rebellion against the
First Brazilian Republic
The First Brazilian Republic, also referred to as the Old Republic (, ), officially the Republic of the United States of Brazil, was the Brazilian state in the period from 1889 to 1930. The Old Republic began with the coup d'état that deposed ...
at
Fort Copacabana
Fort Copacabana (, ) is a military base at the south end of the beach that defines the district of Copacabana, Rio de Janeiro, Brazil. The base is open to the public and contains the ''Museu Histórico do Exército'' (Army Historical Museum) and ...
in
Rio de Janeiro
Rio de Janeiro, or simply Rio, is the capital of the Rio de Janeiro (state), state of Rio de Janeiro. It is the List of cities in Brazil by population, second-most-populous city in Brazil (after São Paulo) and the Largest cities in the America ...
. Sparked initially by the punishment and brief imprisonment of marshal
Hermes da Fonseca by president
Epitácio Pessoa, the ''tenentes'' attempted to prevent
Artur Bernardes, winner of the
1922 presidential election, from taking office.
The ''tenentes'' demanded various forms of social modernization, calling for agrarian reform, the formation of
cooperatives
A cooperative (also known as co-operative, coöperative, co-op, or coop) is "an autonomous association of persons united voluntarily to meet their common economic, social and cultural needs and aspirations through a jointly owned and democr ...
, and the nationalization of mines. Their early-morning rebellion was taken up by a garrison in
São Paulo
São Paulo (; ; Portuguese for 'Paul the Apostle, Saint Paul') is the capital of the São Paulo (state), state of São Paulo, as well as the List of cities in Brazil by population, most populous city in Brazil, the List of largest cities in the ...
but not by others; only "scattered units around Rio de Janeiro revolted: the Escola Militar, some elements of the First Infantry Regiment and the Battalion of Engineers, and the garrisons of Forts Copacabana and Vigia. However, the remainder of the First Army Division stayed loyal and, with General Setembrino de Carvalho supervising the operations, easily crushed the revolt".
Twenty-four hours later, just 200 rebels remained when the
navy
A navy, naval force, military maritime fleet, war navy, or maritime force is the military branch, branch of a nation's armed forces principally designated for naval warfare, naval and amphibious warfare; namely, lake-borne, riverine, littoral z ...
dreadnought
The dreadnought was the predominant type of battleship in the early 20th century. The first of the kind, the Royal Navy's , had such an effect when launched in 1906 that similar battleships built after her were referred to as "dreadnoughts", ...
''Minas Geraes'' shelled the Copacabana barracks, after which two navy aircraft bombed the barracks in the first use of naval aircraft in combat in
Latin America
Latin America is the cultural region of the Americas where Romance languages are predominantly spoken, primarily Spanish language, Spanish and Portuguese language, Portuguese. Latin America is defined according to cultural identity, not geogr ...
. The defenders were driven from their positions. A group known subsequently as the
18 of the Copacabana Fort revolt
The Copacabana Fort revolt (), also known as the 18 of the Fort revolt (), was one of several movements coordinated by rebel factions of the Brazilian Army in the First Republic, Brazilian Army against the president of Brazil, Epitácio Pessoa, a ...
were led down
Avenida Atlântica by
Antônio de Siqueira Campos and
Eduardo Gomes to confront the army loyalists;
the eighteen made a last stand on the beach, where sixteen were killed and two, Gomes and Campos, survived. In the aftermath, the government imposed a state of emergency, 1,000 cadets were expelled from the army school and many officers were sent to remote garrisons.
São Paulo Revolt of 1924
The São Paulo Revolt of 1924 was the second tenentist revolt and the largest conflict in the city of São Paulo. It began in the early hours of July 5 and ended on 28 July 1924. The revolt was motivated by the discontent of the military with the economic crisis and the concentration of power at the hands of politicians from
São Paulo
São Paulo (; ; Portuguese for 'Paul the Apostle, Saint Paul') is the capital of the São Paulo (state), state of São Paulo, as well as the List of cities in Brazil by population, most populous city in Brazil, the List of largest cities in the ...
and
Minas Gerais
Minas Gerais () is one of the 27 federative units of Brazil, being the fourth largest state by area and the second largest in number of inhabitants with a population of 20,539,989 according to the 2022 Brazilian census, 2022 census. Located in ...
. Commanded by retired General
Isidoro Dias Lopes, with the participation of several lieutenants, the main objective of the uprising was to depose President Artur Bernardes (considered to be an enemy of the military since the
crisis of the fake letters). Among the demands was the adoption of the secret ballot, free justice and the introduction of compulsory public education.
Raised in the capital of São Paulo on 5 July 1924 (the 2nd anniversary of the 18 Revolt of the Copacabana Fortress, the first tenentist revolt), the revolt occupied the city for 23 days, forcing the president of the state, Carlos de Campos, to flee to the neighborhood of Penha, in the east zone of São Paulo, on July 9, after the
Campos Elíseos Palace, seat of the São Paulo government at that time, was bombarded. Carlos de Campos was installed in an adapted train car at the Guaiaúna station in Central Brazil, where the federal troops that came from
Mogi das Cruzes
Mogi das Cruzes ( or ) is a municipality in the state of São Paulo, Brazil, located within the metropolitan region of the state capital of the city of São Paulo. The population is 451,505 (2022 census) in an area of 713 km2. It is located 4 ...
were located. Rebellions broke out in several cities in the interior of the state of São Paulo, with many prefectures being taken over by the rebels.
The city of São Paulo was
bombarded by Federal Government aircraft and artillery. The loyalist Army (loyal to President Artur Bernardes) used the so-called "terrifying bombardment", reaching various parts of the city, especially working-class neighborhoods such as
Mooca and
Brás, and the middle class, such as
Perdizes. Without equivalent military equipment (artillery or aircraft) to confront government troops, the rebels retired to
Bauru
Bauru () is a Brazilian municipality located in the interior of São Paulo state, recognized as the most populous city in the Central-West region of São Paulo. It is one of the 19 municipalities comprising the Bauru Immediate Geographic Region ...
in the early hours of July 28, where Isidoro Dias Lopes heard news that the legalist army was concentrated in the city of
Três Lagoas,
Mato Grosso do Sul
Mato Grosso do Sul ( ) is one of Federative units of Brazil, Brazil's 27 federal units, located in the southern part of the Central-West Region, Brazil, Central-West Region, bordering five Brazilian states: Mato Grosso (to the north), Goiás and ...
. At 10 o'clock on the morning of July 28, Carlos de Campos returned to his office in the Government Palace. Isidoro Dias Lopes and
Juarez Távora then planned an attack on that city. The defeat at Três Lagoas, however, was the greatest defeat of this revolt. A third of the revolting troops died, were seriously injured or captured. Overthrown, the rioters then marched south, where, in the city of
Foz do Iguaçu
Foz do Iguaçu (; "Iguazu River mouth"), colloquially referred to as Foz, is the Brazilian city on the border of Iguaçu Falls. Foz in Portuguese language, Portuguese means the mouth or end of a river and Iguaçu in Guarani language, Guarani or Tup ...
, in
Paraná, they joined Gaucho officers led by
Luís Carlos Prestes
Luís Carlos Prestes (January 3, 1898 – March 7, 1990) was a Brazilian revolutionary and politician who served as the Secretary (title), general-secretary of the Brazilian Communist Party from 1943 to 1980 and a senator for the Federal Distric ...
, in what became the greatest guerrilla feat in Brazil until then: the
Prestes Column. The final balance indicates the death of 1,000 people, 4,000 injured and an estimated 300,000 temporarily driven into the outskirts of the city.
July 1924 – February 1927: the second revolt and the long march of the Prestes Column
Two years later, on 5 July 1924, another group of army officers mounted a rebellion in São Paulo and
Rio Grande do Sul
Rio Grande do Sul (, ; ; "Great River of the South") is a Federative units of Brazil, state in the South Region, Brazil, southern region of Brazil. It is the Federative units of Brazil#List, fifth-most populous state and the List of Brazilian s ...
. The date was chosen to honour the 1922 rebels; the uprising "was better prepared and was intended to bring down the Bernardes government".
The formal leader was retired General
Isidoro Dias Lopes, with others including Eduardo Gomes,
Newton Estillac Leal,
João Cabanas and Miguel Costa. The rebellion began well, with control of São Paulo being secured after the governor and forces loyal to him abandoned the city early on 9 July.
The rebels in the city were put under siege by government forces, and prevented from linking up with other uprisings which were breaking out in places such as
Bela Vista,
Mato Grosso
Mato Grosso ( – ) is one of the states of Brazil, the List of Brazilian states by area, third largest by area, located in the Central-West Region, Brazil, Central-West region. The state has 1.66% of the Brazilian population and is responsible ...
,
Aracaju
Aracaju () is the capital of the state of Sergipe, Brazil, located in the northeastern part of the country on the coast, about 350 km (217 mi) north of Salvador, Bahia, Salvador. According to the 2020 estimate, the city has 664,908 inha ...
,
Sergipe
Sergipe (), officially State of Sergipe, is a States of Brazil, state of Brazil. Located in the Northeast Region, Brazil, Northeast Region along the Atlantic Ocean, Atlantic coast of the country, Sergipe is the smallest state in Brazil by geogra ...
and
Manaus
Manaus () is the List of capitals of subdivisions of Brazil, capital and largest city of the States of Brazil, Brazilian state of Amazonas (Brazilian state), Amazonas. It is the List of largest cities in Brazil, seventh-largest city in Brazil, w ...
. The city was then subjected to a several-week artillery and aerial bombardment, of which civilians bore the brunt. On 26 July, army aircraft dropped leaflets over the city warning the remaining civilians to leave so that loyalist forces would have a free hand against the rebels.
Isidoro's various attempts at securing an agreement with the government that would at least give the rebels amnesty were rebuffed. The leaders understood that they would be wiped out, along with a good part of the city, if they stayed. On the night of 27 July they staged a careful withdrawal of 3,000 troops on thirteen trains, via the Northwest Railroad, toward Mato Grosso, where they hoped to link up with sympathetic units. This withdrawal was executed so smoothly that it went unnoticed by the government forces until the morning. However, with their route to Mato Grosso blocked, the rebels retired to an area bordering
Argentina
Argentina, officially the Argentine Republic, is a country in the southern half of South America. It covers an area of , making it the List of South American countries by area, second-largest country in South America after Brazil, the fourt ...
and
Paraguay
Paraguay, officially the Republic of Paraguay, is a landlocked country in South America. It is bordered by Argentina to the Argentina–Paraguay border, south and southwest, Brazil to the Brazil–Paraguay border, east and northeast, and Boli ...
close to Foz do Iguaçu.
Having escaped to the interior and joined by others from Rio Grande do Sul, they began a campaign as a guerrilla force led by
Luís Carlos Prestes
Luís Carlos Prestes (January 3, 1898 – March 7, 1990) was a Brazilian revolutionary and politician who served as the Secretary (title), general-secretary of the Brazilian Communist Party from 1943 to 1980 and a senator for the Federal Distric ...
and Miguel Costa. They became known as the Prestes Column, and covered some 25,000 kilometres from October 1924 to February 1927 as they roamed through the interior of the country seeking unsuccessfully to promote mass rebellion or at any rate to act as a moral gadfly to the nation's conscience. After losing significant numbers to desertion and sickness, escaping encirclement at
Palmeira, Rio Grande do Sul, in January 1925, making a successful stand at the
Iguazu Falls
Iguazú Falls or Iguaçu Falls ( , ; ; Tupi: Y Ûasu "big water") are waterfalls of the Iguazu River on the border of the Argentine province of Misiones and the Brazilian state of Paraná. Together, they make up the largest waterfall sys ...
in February and after some initial disagreements about strategy, the rebels adopted one that amounted less to a war of movement than a moving "armed protest demonstration" that would serve as a constant call to action against the hated president Bernardes. The idea was not to defeat the forces sent against them, much less so the old objective of seizing power in Rio de Janeiro: the objective now was to stay alive, keep the column moving and seemingly invincible. In that, they succeeded as they moved through state after state from Mato Grosso to Maranhão and back, before seeking refuge in
Bolivia
Bolivia, officially the Plurinational State of Bolivia, is a landlocked country located in central South America. The country features diverse geography, including vast Amazonian plains, tropical lowlands, mountains, the Gran Chaco Province, w ...
in 1927".
Regarding the "Long March", Prestes subsequently wrote that "the tactics of swift marches, evasion as far as possible of contact with superior enemy forces and surprise attacks aimed at demoralizing the enemy and capturing arms and ammunition, demonstrated that in Brazilian conditions it was possible to stage a protracted struggle".
However, years later he was critical of the futility of his own strategy, writing that "I also defended the column's march tactics, claiming that they presented opportunities for recruiting new fighters. This, however, was not the case. The farmers sympathised with us for the simple reason that we were against the oppressors, they admired our heroism and devotion, but had no intention (with rare exceptions of some young people) of committing themselves to a struggle in whose success they could not believe".
Legacy

The ''tenente'' revolts heralded the end of the ''café com leite'' politics and ''coronelismo'' and the beginning of social reforms. The actions and ideas that grew out of the revolts inspired other individuals, such as
Getúlio Vargas
Getúlio Dornelles Vargas (; ; 19 April 1882 – 24 August 1954) was a Brazilian lawyer and politician who served as the 14th and 17th president of Brazil, from 1930 to 1945 and from 1951 until his suicide in 1954. Due to his long and contr ...
, to lead the
1930 revolution against the Brazilian Government and bring down the First Brazilian Republic. The impact of the Prestes Column placed insurgents in contact with the rural peasantry of Brazil and the surrounding countryside; a contact that made the soldiers aware, for the first time, of the wretched conditions of their own countrymen.
"The ''tenentes'' became the most visible proponents for revolution and helped convince Vargas that the use of force would be necessary". Subsequently, with the help of the ''tenentes'', whom he restored to the army, often with significant promotions, Vargas "forged a highly personalised dictatorship".
Prestes, however, "proclaimed his opposition to the 1930 coup and formally applied for membership of the Communist Party".
See also
*
Brazilian Army
The Brazilian Army (; EB) is the branch of the Brazilian Armed Forces responsible, externally, for defending the country in eminently terrestrial operations and, internally, for guaranteeing law, order and the constitutional branches, subordina ...
*
First Brazilian Republic
The First Brazilian Republic, also referred to as the Old Republic (, ), officially the Republic of the United States of Brazil, was the Brazilian state in the period from 1889 to 1930. The Old Republic began with the coup d'état that deposed ...
*
Military history of Brazil
*
Rebellions and revolutions in Brazil
This article lists major rebellions and revolutions that have taken place during History of Brazil, Brazilian history.
Colonial Brazil (1500–1822)
* Vila Rica Revolt (1720)
* Colonial Brazil#Runaway slave settlements, Slave rebellions (peaked ...
References
Further reading
*
Macaulay, Neill; (1974) ''The Prestes Column – revolution in Brazil''. New Viewpoints (New York)
{{Authority control
Rebellions in Brazil
20th-century rebellions