The movement was heavily influenced by activists like Michel Fiant and Gilbert Marquis, who were initially members of the Internationalist Communist Party.
From 1953, Fiant served as secretary of the CGT union at the Derveaux factory in Bezons and led the Pabloist group during the PCI's split through entrism, ultimately joining the French Communist Party (PCF).
[2] Gilbert Marquis spent time in Yugoslavia,[3] working with labor brigades supporting the regime of Josip Broz Tito against Joseph Stalin,[2] and later became a permanent union representative for the CGT at Chausson factories in Gennevilliers.
Their entrism activities, supported by Michel Pablo, failed by 1958 when the PCF purged the activists behind Tribune de discussion,[2][4] marking the end of this strategic approach.
The AMR was founded in 1969 by militants of the Fourth International's Revolutionary Marxist Tendency (TMR-IV), along with students and high school activists radicalized by the events of May 1968.