Attack on Cunene The first armed action began to be planned and recognized in August 1970. By September, the target was defined and the plan was formulated, but due to the constraints of clandestinity, Gabriel Pedro could not reach Portugal in time. In October, the liner
Vera Cruz and the "most modern cargo ship of the African lines", the
Cunene, arrived in Portugal. Gabriel Pedro, along with Carlos Coutinho, was scheduled to board the
Vera Cruz. Coutinho was responsible for installing the explosive charges on the ship. Gabriel Pedro, after further review, proposed amendments that led to a complete reformulation of the procedures. He had the central role in the operation: acquiring a rowboat and transporting Carlos Coutinho to the
Vera Cruz. Gabriel Pedro, a 72-year-old veteran communist militant, had previously spent several years imprisoned in the
Tarrafal concentration camp. Just before the operation, the explosive charges assembled by Narciso and Miguel in the ARA laboratory in
Arruda dos Vinhos were moved to a secure location in Alcântara, with the clocks synchronized for 5 a.m.
Start of operation On October 26, 1970, at 9:45 p.m., the operation began. After several meetings among the operatives, Carlos Coutinho and Gabriel Pedro rowed out from the Poço do Bispo dock in
Marvila.
Result The following day, news of an explosion on the
Cunene appeared in the newspapers.
O Século published a photograph of the ship showing visible damage. Meanwhile,
Diário de Notícias reported an interview with several individuals, including the ship's commander, who suggested that "the rupture was likely caused by a leakage of diesel or gases in the hold".
The "Triple Action" Preparation In the meetings following the Cunene action, new targets were proposed, including the PIDE/DGS headquarters. However, this idea was discarded due to the difficulty of accessing the location and the risk of causing casualties. Instead, the PIDE Technical School, located near Benfica Road, was suggested as a target. This choice was seen as a viable way to strike at the regime and its repressive apparatus. Additionally, several other targets were proposed. To symbolize opposition to American
imperialism, the Cultural Center of the United States on Duque de Loulé Avenue was selected. To minimize risk further, the bomb was planted at 3:40 a.m., just twenty minutes before the scheduled detonation. However, the operation turned tragic when a 15-year-old boy, who had returned from work, encountered the device. It is unclear whether he attempted to move or open the box or was simply in the vicinity when the explosion occurred. This incident marked the only ARA action with a fatal outcome. The press reported the fatality alongside the explosions, and the PIDE/DGS attributed it to an ARA operative. The ARA viewed the fatality as a victim of repression and fascism and considered the placement of the explosive device outside the building a significant error. Consequently, the organization resolved never to conduct operations with targets near public roads again.
United States Cultural Center The plan for the action at the American Cultural Center involved placing an explosive device inside the building, with the clock set to detonate at dawn. The bomb was concealed within a thick, spine-bound book to avoid detection. Romeo (pseudonym), a militia
furir serving his
mandatory military service in the
Commandos, was assigned the task of executing this mission. The operation at the American Cultural Center began weeks in advance. Romeo visited the center to examine and plan his approach. He purchased a similar book in English from a bookstore to match the ones he had observed.
Operation "Águia Real" (Royal Eagle) Preparation In the early morning of March 8, 1971, one of the ARA's most significant actions occurred: the sabotage of the Tancos air base, which led to the destruction of numerous military airplanes and helicopters. The planning for this operation began in August 1970, when Raimundo Narciso was introduced to Ângelo de Sousa, a young
Air Force corporal undergoing mandatory military service at Air Base No. 3 in Tancos, through Jaime Serra. The plan involved ARA operatives disguising themselves as military personnel and being introduced to the base's guard as members from
Ota Air Base. Once inside the complex, they intended to place bombs equipped with incendiary charges and electrical circuits on each aircraft, which would be detonated simultaneously. The operatives responsible for executing the action included Ângelo de Sousa, Carlos Coutinho, and António João Eusébio, who would be transported to the base by a hired car. Raimundo Narciso was in charge of coordinating the operation. Following the mission, Ângelo de Sousa was to stay in a safe apartment until arrangements could be made to get him abroad. Using the copied keys, they entered the hangar and proceeded to install the electrical and explosive systems according to their pre-acquired data. The final, critical step was connecting the charges to the batteries. Any mistake at this stage could trigger an immediate and catastrophic explosion. Photographs of Ângelo de Sousa were widely published in the press, accompanied by notes detailing several accusations against him. Following this high-profile operation, the
PIDE/
DGS began to connect the ARA to the
PCP. The scale and sophistication of the sabotage were such that it suggested a well-organized and capable logistical and technical support structure. From the police's perspective, "only the PCP would possess the structures, operational capability, and resources necessary to execute such a complex operation successfully". The Central Committee of the PCP hailed the formation of the ARA as "an important political event in national political life." They emphasized the "political justness" of the ARA's struggle against colonialism, fascism, and imperialism. The Committee assessed that the ARA's actions had generated "a wave of enthusiasm and increased confidence in the popular struggle toward armed insurrection".
Action against NATO meeting On June 3, 1971, several ministers from NATO member countries gathered in Lisbon, accompanied by hundreds of international journalists covering the high-profile meeting, which was enthusiastically promoted by
Marcello Caetano. This meeting, the first of its kind in many years, provided an ideal opportunity for the ARA to draw international attention to the colonial war and the opposition struggle in
Portugal. However, the electricity disruption did not proceed as planned due to insufficient explosive charges. Despite this, the operation succeeded in damaging several poles, leading to power outages in certain areas of Lisbon, including the
Palace of Ajuda, where the NATO meeting was taking place. The operation was initiated after the Central Command learned of a significant cache of explosive material stored in an armory at the Loures quarry. Reconnaissance missions were conducted by Francisco Miguel, Raimundo Narciso (accompanied by his wife and daughter), António Pedro Ferreira, and Ramiro Morgado. The ARA viewed these facilities as a provocation and as evidence of NATO's support for the Portuguese dictatorship and its colonial wars. Therefore, attacking the headquarters would have significant symbolic value. To carry out the operation, the ARA needed to smuggle explosives past the guardhouse. Raimundo Narciso and Victor Eça conducted a reconnaissance of the site. Manuel dos Santos Guerreiro and Manuel Policarpo Guerreiro were selected to execute the plan, which was to be carried out in the early morning hours when there was a higher likelihood that the guards would be asleep. After retrieving the bomb, which was concealed in a wooden box decorated to resemble a birthday present, they proceeded to
Oeiras, where Manuel Guerreiro was stationed. Manuel Policarpo Guerreiro received the bomb and was responsible for placing it in the building. Raimundo Narciso, Manuel Policarpo Guerreiro, and Manuel Guerreiro entered the premises by opening the gate. They first approached the guardhouse, where Narciso took cover, and then moved on to the main building to position the bomb. At 2 a.m., the bomb detonated, causing massive damage to the Comiberlant Barracks. The explosion resulted in the collapse of part of the facade and wall, as well as the destruction of windows, doors, nearly all furniture, and electronic devices. According to Raimundo Narciso, the censorship prevented any news about the explosion from appearing in the newspapers. Since the action occurred just two days before the scheduled commemoration, there was a concerted effort to repair the building's facade to conceal the damage. However, the extent of the destruction rendered the attempt ineffective. Consequently, the inauguration ceremony had to be relocated to the street and held on an improvised stage, which ultimately resulted in a fiasco. In their announcement, the ARA emphasized that there were no casualties and countered government claims, asserting that no operatives had been captured. Raimundo Narciso conducted a reconnaissance of the site, learning about the ships, access points, and security measures. To gather this information, Narciso took a vacation to Figueira da Foz beach with his wife. The plan, similar to the one in Cunene, involved planting an explosive on the hull of one of the ships. However, this time, it was necessary to reach the ship by swimming. ARA has never been able to clarify how the action took place.
Operation "Short-Circuit" On August 9, 1972, the inauguration of
Américo Tomás as
President of the Republic was scheduled to proceed once again. Jaime Serra was assigned to oversee the execution in Porto, while Ângelo de Sousa was responsible for the four towers in Coimbra. According to Jaime Serra, the action "had great political repercussion and overshadowed the inauguration of the President of the Republic", and was broadcast with emphasis, being impossible to ignore. This was the last action of the ARA.
End of ARA The ARA was suspended in May 1973. By this time, no operations had been conducted since August 1972. The decision to suspend the ARA, made by both the ARA Central Command and the Secretariat of the PCP Central Committee, was influenced by several factors. The ARA's statement explained that the suspension of certain actions was a strategic decision in light of the emerging broad political movement in the country, which was seen as crucial for weakening the fascist and colonialist dictatorship. The goal was to maximize the potential of other forms of anti-fascist popular struggle. Additionally, the organization had been significantly weakened by the arrest of six key operatives in 1970. Although the ARA operated independently from the PCP, there were several connections between the two organizations. For instance, M, a worker at the
Port of Lisbon who had made contact with Jaime Serra, possessed critical information that could have facilitated an ARA sabotage action. However, upon arrest, he divulged all the information he had to the police. This loss, coupled with intensified persecution by the political police, severely impeded the execution of actions. In 1973, Augusto Lindolfo survived an assassination attempt, which the PIDE attributed to the ARA, although no one claimed responsibility for the attack. == Operational ==