, one of the defence's attorneys The planned military tribunal was convened in the northwestern city of
Burgos in
Castile and León on 3 December 1970. In a bid to showcase its new
internationalist attitude, ETA hired a group of prominent left-leaning lawyers. They included the future co-author of the
Spanish constitution Gregorio Peces-Barba, the
political theorist , and the future
senator . The defence's strategy was to use the highly publicised trial as a platform for criticism of the regime of
Francisco Franco and its oppression of dissenters and
ethnic minorities. As the trial focused on events which occurred between 1968 and 1969, it was "not generally understood" that ETA had since split into several factions. Splinter groups ETA-V and ETA-IV issued contradictory reports to the press, which "only added to the confusion". During its first four days, the trial heard statements from the defendants. In a 2015 book, the historian John Sullivan said: [The statements] seemed to show that ETA had been transformed into a Marxist-Leninist organization which, while it confined its activities to
Euskadi, sympathised equally with the oppressed elsewhere in Spain, and had completely abandoned anti-Spanish
chauvinism. Some, however, took a "more traditional nationalist stance", including declaring that ETA was a "movement of national liberation". They also recounted incidents of
torture experienced at the hands of the Spanish
military police. According to historian Luis Castells, the trials thus became "a milestone in the anti-Franco struggle", generating "an unreleased mobilization in the Basque Country, in Spain and internationally". On 7 December, the trial was interrupted because one of the presiding officers had fallen ill. When proceedings resumed the following day, the tribunal adopted a more rigid approach, suppressing statements not related to the accessions to prevent further digressions by the defendants. In response, most of them exercised their
right to remain silent. However, the final defendant to speak, attempted to attack the tribunal with an axe. Onaindia was overpowered quickly; during the struggle, the rest of the prisoners stood up and sang the Basque soldiers' anthem, and the incident became subject to significant foreign media coverage. Afterwards, the court was reconvened, with the press and public excluded. ==Verdict==