sentences:  Over the course of the next few months, Perón sided with the unions rather than with the youth, whose armed groups were increasingly targeted by the regime that they themselves supported.After Perón's death and with the accession of his wife Isabel Martínez de Perón to the presidency, this persecution only increased, and Argentine society headed towards open civil war in which a union-backed power directed in part by José López Rega faced increased militancy on the part of the Montoneros and others.With the onset of the military regime that overthrew Isabel Perón in 1976, trade unions were themselves also violently suppressed.