In 1968 Jibril broke away from the PFLP because of disputes over the more revolutionary Marxism advocated by Habash and Nayef Hawatmeh.
However, another faction moved towards Marxism, including Habash and Nayef Hawatmeh, which brought them into conflict with Nasser and increasingly led them to place a heavier emphasis on socialism than pan-Arab nationalism.
Hawatmeh opposed the 1993 Oslo Accords, calling them a "sell-out", but became more conciliatory in the late 1990s.
The Sandinistas first made contact with Nayef Hawatmeh's Popular Democratic Front for the Liberation of Palestine (PDFLP).