Galician People's Union
In late 1973 Organización Obreira lived an internal conflict between the supporters of joining the Organisation of Marxist–Leninists of Spain (OMLE) and those who wanted to join the Galician People's Union (UPG). Finally, in 1974, Organización Obreira disappeared as one sector joined the OMLE, which was the origin of the Communist Party of Spain (Reconstituted) (PCE(r)) and the GRAPO, and another part joined the UPG.