Wadie Haddad
In 1964 he began reorganizing the ANM, regrouping the Palestinian members of the organization into a "regional command." After the Six-Day War in 1967, disillusion with Nasser became widespread. This prompted the foundation, led by Habash, of the Popular Front for the Liberation of Palestine (PFLP) as a front of several Palestinian factions, like the "heroes of return" and "Palestinian Liberation Front", along with the ANM on 11 December, when he also became its first Secretary-General. Habash was briefly imprisoned in Syria in 1968 but escaped. In the same year, he also came into conflict with long-time ally Wadie Haddad, but both remained in the PFLP.