1936 Naval Revolt
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The 1936 Naval Revolt () or Tagus boats mutiny (''Motim dos Barcos do Tejo'') was a
mutiny Mutiny is a revolt among a group of people (typically of a military or a crew) to oppose, change, or remove superiors or their orders. The term is commonly used for insubordination by members of the military against an officer or superior, ...
in
Portugal Portugal, officially the Portuguese Republic, is a country on the Iberian Peninsula in Southwestern Europe. Featuring Cabo da Roca, the westernmost point in continental Europe, Portugal borders Spain to its north and east, with which it share ...
that occurred on 8 September 1936 aboard the aviso and destroyer . It was organized by the Revolutionary Organization of the Fleet (''Organização Revolucionária da Armada'', ORA), a left-wing group with links to the
Portuguese Communist Party The Portuguese Communist Party (, , PCP) is a Communism, communist and Marxism–Leninism, Marxist–Leninist List of political parties in Portugal, political party in Portugal. It is one of the strongest List of communist parties, communist par ...
. The mutiny broke out on 8 September 1936 among communist sailors in the Portuguese Navy's two newest warships moored in the
estuary An estuary is a partially enclosed coastal body of brackish water with one or more rivers or streams flowing into it, and with a free connection to the open sea. Estuaries form a transition zone between river environments and maritime enviro ...
of the Tagus River near
Lisbon Lisbon ( ; ) is the capital and largest city of Portugal, with an estimated population of 567,131, as of 2023, within its administrative limits and 3,028,000 within the Lisbon Metropolitan Area, metropolis, as of 2025. Lisbon is mainlan ...
. Their aim was ostensibly to take part in the
Spanish Civil War The Spanish Civil War () was a military conflict fought from 1936 to 1939 between the Republican faction (Spanish Civil War), Republicans and the Nationalist faction (Spanish Civil War), Nationalists. Republicans were loyal to the Left-wing p ...
alongside the Republicans by sailing to a Republican-held port in the Mediterranean. However, the revolt failed and the convicted sailors were the first to be sent to the Tarrafal concentration camp established in the Cape Verde Islands to house political prisoners.


Background

In February 1936, a coalition of leftist groups won the national election in
Spain Spain, or the Kingdom of Spain, is a country in Southern Europe, Southern and Western Europe with territories in North Africa. Featuring the Punta de Tarifa, southernmost point of continental Europe, it is the largest country in Southern Eur ...
. Several Spanish conservatives sought refuge in Portugal, where a right-wing dictatorship, the ''Estado Novo'', established in 1926 and led by António de Oliveira Salazar, felt threatened by the change in power in Spain. Soon thereafter, a coup d'état led by generals Emilio Mola, José Sanjurjo and
Francisco Franco Francisco Franco Bahamonde (born Francisco Paulino Hermenegildo Teódulo Franco Bahamonde; 4 December 1892 – 20 November 1975) was a Spanish general and dictator who led the Nationalist faction (Spanish Civil War), Nationalist forces i ...
, and supported by Spanish conservatives and fascists, initiated the
Spanish Civil War The Spanish Civil War () was a military conflict fought from 1936 to 1939 between the Republican faction (Spanish Civil War), Republicans and the Nationalist faction (Spanish Civil War), Nationalists. Republicans were loyal to the Left-wing p ...
. The Portuguese government offered support to Franco's forces in defiance of a non-intervention agreement they had been pressured to sign by their ally, the
United Kingdom The United Kingdom of Great Britain and Northern Ireland, commonly known as the United Kingdom (UK) or Britain, is a country in Northwestern Europe, off the coast of European mainland, the continental mainland. It comprises England, Scotlan ...
. The British government warned the Portuguese that they would not protect them from attacks by the Republican faction if Portugal continued to be involved in the war, making Salazar increasingly nervous about his position. While the Portuguese government increased its support of Franco, the
Portuguese Communist Party The Portuguese Communist Party (, , PCP) is a Communism, communist and Marxism–Leninism, Marxist–Leninist List of political parties in Portugal, political party in Portugal. It is one of the strongest List of communist parties, communist par ...
stepped up its activism in opposition to the ''Estado Novo''. Through the Revolutionary Organization of the Fleet (''Organização Revolucionária da Armada'', ORA), which had grown in strength over the course of the early 1930s, the party plotted a mutiny of several Portuguese Navy ships with intention of allowing them to sail to Spain to assist the Spanish government in the war.


Mutiny

The Portuguese fleet lay at anchor in the
estuary An estuary is a partially enclosed coastal body of brackish water with one or more rivers or streams flowing into it, and with a free connection to the open sea. Estuaries form a transition zone between river environments and maritime enviro ...
of the Tagus River on 8 September 1936. The rebels planned to seize control of the ships present and the coastal forts. At 03:00 their ships were to begin their departure, following each other out at fifteen minute intervals. No word was received from the fort garrisons, so the rebels' plan would only work if they could embark before shore batteries came into action. However, a
wireless Wireless communication (or just wireless, when the context allows) is the transfer of information (''telecommunication'') between two or more points without the use of an electrical conductor, optical fiber or other continuous guided transm ...
operator tipped off the Portuguese Admiralty to the plan at around 01:00. A boat was immediately dispatched to survey the situation of the fleet. Upon seeing the Admiralty launch, most of the Portuguese sailors realized their plot had been discovered and chose not to revolt. By then the crews of and , two of the navy's most modern ships, had already mutinied, forcing their officers below deck at gunpoint. The sailors on ''Afonso de Albuquerque'' attempted to lure the Admiralty officers aboard, but the launch fled and the crew opened fire with machine guns. It took almost an hour before the alarm was raised ashore. When the forts were finally alerted, they could not target the mutineers' ships due to a heavy mist. The rebels were hesitant to leave without further orders from their leaders, and did not attempt a breakout until daylight. The Portuguese naval minister ordered coastal artillery to fire on any vessel attempting to leave the harbour. At 07:30 ''Afonso de Albuquerque'' and ''Dão'' raised steam and proceeded down the river at about . By then the mist had cleared and the shore batteries opened fire. ''Afonso de Albuquerque'' responded but was soon struck. A loyal submarine opened fire on her with a machine gun. ''Afonso de Albuquerque''s
bridge A bridge is a structure built to Span (engineering), span a physical obstacle (such as a body of water, valley, road, or railway) without blocking the path underneath. It is constructed for the purpose of providing passage over the obstacle, whi ...
was destroyed in the engagement and her engines were crippled. ''Dão'', caught in the cross-fire between two forts, was also hit and both ships ran aground. The crews raised white flags to signal their surrender. Government forces boarded ''Afonso de Albuquerque'' and arrested its crew. In an attempt to conceal their actions, several sailors stripped off their uniforms and attempted to swim ashore. Loyal Portuguese troops raked them with machine gun fire. The rebels were rounded up near the
Belém Tower Belém Tower (, ; literally: Bethlehem Tower), officially the Tower of Vincent of Saragossa, Saint Vincent () is a 16th-century fortification located in Lisbon that served as a point of embarkation and disembarkation for Portuguese explorers a ...
and taken prisoner. The leader of the revolt, a sailor from ''Dão'', committed suicide.


Aftermath

The Portuguese Navy Ministry reported that twelve sailors were killed and twenty wounded. 238 were arrested and deported to the Tarrafal concentration camp on
Santiago Santiago (, ; ), also known as Santiago de Chile (), is the capital and largest city of Chile and one of the largest cities in the Americas. It is located in the country's central valley and is the center of the Santiago Metropolitan Regi ...
, Portuguese Cape Verde. The Ministry dismissed both crews in their entirety, reinstating sailors only if they were able to prove they resisted the mutiny. An investigation was also opened into discipline aboard the aviso . According to historian Glyn Stone, the revolt was "easily suppressed and remained an isolated incident" and did not pose a threat to Salazar. The German Ambassador to Portugal, Oswald von Hoyningen-Huene, reported that "it is even said that Salazar...provoked the dramatic development, or at the very least allowed matters to run their usual course." The government framed the mutiny as a
communist Communism () is a sociopolitical, philosophical, and economic ideology within the socialist movement, whose goal is the creation of a communist society, a socioeconomic order centered on common ownership of the means of production, di ...
plot to surrender the Portuguese ships to the Spanish Republican Navy. On 9 September, Salazar issued an official statement which depicted the Spanish Civil War as an international conflict and warned of the dangers of political contagion. He appealed for the creation of a new armed force to counter such a threat. The next day he introduced a law forcing all public servants to swear allegiance to the principles of his regime. On 30 September, an anti-communist paramilitary force, the Legião Portuguesa, was formed. Communist activity in the Portuguese Armed Forces declined after the mutiny and remained minimal in the following years. Though it had dealt with the mutiny with force, the Portuguese government feared further revolts. Several days after the event the British press reported that several Portuguese Army units had rebelled, prompting the Portuguese embassy in London to issue a denial and declare the foreign press was depicting the Portuguese situation as chaotic to the Spanish government's benefit, and therefore the government was "obliged to intensify its offensive against communism". The mutiny ultimately strengthened Portuguese support for Franco's faction in the Spanish Civil War. In October the Portuguese government officially severed relations with the Spanish Republican government.


See also

* Madeira uprising (1931)


Notes


References


Bibliography

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External links


Revolta dos Marinheiros
* * {{1936 shipwrecks Anti-Francoism 1936 in Portugal Communism in Portugal Communist rebellions Conflicts in 1936 Estado Novo (Portugal) Naval mutinies Maritime incidents in 1936 Portuguese Navy Spanish Civil War