The idea of setting up a focus of rural guerrilla that could function as a pole of attraction for all elements dissatisfied with the Brazilian military dictatorship in order to compensate for the smashing of urban opposition movements had been long nurtured among the Brazilian Left since 1964, but it was left to the PCdoB to be the only political organization that actually tried to build up such a focus. The guerrilla was countered by the Brazilian Army from 1972, when several of its members had already been established in the region for at least six years. The stage of combat operations between the guerrillas and the Army took place in the border of the states of Goiás, Pará and Maranhão. The movement's name came from the fact that its fighters were established on the banks of the Araguaia river, near the towns of São Geraldo, Pará and Xambioá, in northern Goiás. The region was chosen because it consisted of a hotspot of tension between peasants and developers attracted by the investment opportunities offered by the recent discovery of the nearby Carajás iron ore mine. The guerrillas hoped to gain support of such tensions by siding with the peasants. It is estimated that the movement was composed of about 80 guerrillas. Of these, fewer than twenty survived - among them José Genoino, later president of the Workers' Party, who was arrested by the Army in 1972 during the first stage of military operations. The vast majority of combatants, primarily composed of former college students and self-employed workers, were killed in battle in the jungle or executed after arrest and torture during the final stages of military operations in 1973 and 1974. However, none of the individuals were acknowledged as dead, remaining in the status of persons who had disappeared for political reasons. Currently 60 of the combatants are still considered desaparecidos.
Summary of military operations
The military intervention by the then military dictatorship to eliminate the guerrillas focus in the region, "the Araguaia guerrilla" can be divided into 4 phases:
Operação Papagaio - Apr./Oct. 1972; Conventional use of large regular military units in the first campaign against Araguaia guerrilla, ended with the departure of the troops due to the inefficiency of such approach. The saturation of the region by conventional troops led only to the disorganization of the force of intervention. Indecisive clashes with the guerrillas lowered morale among the military, especially amid marine units, which were therefore excused from further operations. However, this conventional operation already set a hallmark for the entire campaign in that it was waged in brutal fashion. Three areas were bombed with napalm by the military- something confirmed in a 2013 report by the National Truth Commission
Operação Sucuri - Apr./Oct. 1973; aware of the inefficiency of the use of conventional war models' methods and resources against rural guerrilla warfare, and fearing that Araguaia could become in the long run a controlled or recurrently area used by guerrillas, like other regions in the globe, the military decided to change their mode of operation. Operation Anaconda was a military intelligence operation, which also used the same methods of guerrilla warfare, as for example the gradual infiltration among the civilian population of specially trained, supported and monitored agents, who had the same overall appearance of the local population- which was, at the same time, submitted to tight control of their movements and whereabouts.
Operation Marajoara- Oct. 1973/Oct. 1974 - In this phase, with the information gathered during Operation Anaconda, about 400 operators specialized in counter-guerrilla and counter-insurgency were gradually spread out in the region, in same conditions as the agents of previous Operation Anaconda. Divided in small units, having also enlisted some locals who had previously collaborated with the guerrillas, the military proceeded to execute arrests and then to search for the supply posts of the guerrillas, which were systematically destroyed, rendering the enemy fighters prone to contagium of tropical diseases such as yellow fever. This strategy of attrition succeeded to dismantle the guerrilla in Araguaia, before the movement could gain momentum. The disorganization of the guerrillas was followed by an extermination campaign, during which guerrillas were killed by the military.
Cleansing Operation- In early 1975, with the guerrilla already wiped, the military began an concealment operation of all the facts happened in Araguaia, in the face of absolute secrecy determined by government policy of the then new president General Ernesto Geisel. The operation's goal was to erase the traces of the struggle, including the enemies' corpses left behind, buried in the jungle. About 60 guerrillas had been killed, after captured.
Aftermath
When democracy was being restored, in 1982, family members of 22 of the disappeared persons brought proceedings in the Federal Court of Rio de Janeiro, asking for the whereabouts of the disappeared persons to be established and their remains located so that they could be given a decent burial and their death certificates could be registered. At first, the national courts processed the case in the usual way, requesting documents from Executive Branch officials, and summonsing witnesses. However, on March 27, 1989, after the judge responsible for the case was replaced, the Araguaia guerrilla case was dismissed without ruling on the merits, on the grounds that it was legally and physically impossible to comply with the request. Similarly, the judge considered that what the plaintiffs were requesting was covered by the Amnesty law and did not require a judicial action. The plaintiffs appealed the decision to dismiss the case and, on August 17, 1993, obtained a ruling from the Federal Court of Appeals, which reversed the decision of the lower court, and returned the case to the same judge for finding of fact and a ruling on the merits. On March 24, 1994, the Federal Government filed requests for clarification against the Federal Court's ruling. The appeal was not heard by the Court, based on a unanimous decision of the Court of Appeals itself on March 12, 1996. The Government lodged a special appeal against this decision, which was also ruled inadmissible by the Court of Appeals. On March 6, 2001, the plaintiffs appealed to the Inter-American Commission on Human Rights, which decided to declare the Araguaia guerrilla case admissible with regard to alleged violations of the American Declaration and the American Convention. On May 20–21, 2010, the case was heard at the Inter-American Court of Human Rights. On December 14, 2010, the Court ruled that Brazil has broken the American Convention on Human Rights by using its Amnesty law as a pretext for not punishing human rights violators of the military regime. On April 29, the Supreme Federal Court decided, by a score of 7-2, to uphold the 1979 Amnesty law, which prevents the trial of those accused of extrajudicial killings and torture during the military regime. According to University of São Paulo professor Fábio Konder Comparato, author of the Order of Attorneys of Brazil's plea against the Amnesty law in the Supreme Federal Court, the May 20 hearing at the Inter-American Court of Human Rights might cost Brazil its coveted seat at the United Nations Security Council.
