The group was very influential in the area of Vigo, specially in the local Workers' Commissions.
The organization had a Military Front, a structure with a defensive character, led by Abelardo Collazo[a] and Hierro Chomón.
[3] Organización Obreira emerged in April 1972 from a split of the PCE in Vigo, composed of around 50 workers that were members of CCOO and the Communist Youth, dissatisfied with the Pact for Freedom signed by the party the same year, that called for the unity of all leftists, regardless of their class, to defeat Francisco Franco and the Spanish State.
Organización Obreira achieved protagonism during the Vigo general strike of 1972,[4] that shut down the city for one whole month, growing in popularity and membership.
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