Nyorai kuenderera mberi kweiyi ndima - Muna 1970, hondo yakatanga pakati pehurumende yeJordanian yaimbove mubatanidzwa pasi paMambo Hussein nePLO inotungamirwa naYasser Arafat. Iyi hondo yakazozivikanwa se"Black September
", uye zvakaguma nokusiyiwa kwevarwi vazhinji veJordani vokuPalestine. Mahmoud akanga ari mumwe weavo vakanga vari kudivi rePLO, uye vakatiza muJerash. Akagadzwa mutevedzeri wemutungamiri wePLO anonzi "Yarmouk Forces". Achishanda pasi paSaad Sayel, akarwa nevaaimboshanda navo muRoyal Jordanian Army. PLO yakakundwa, uye yakadzingwa muJoridhani pakati pa1971. Mahmoud akatamira kuSyria, kwaakatora chikamu mumusangano wechitatu weFatah kuHamouriyah munaGunyana 1971. Akagadzwa senhengo yeRevolutionary Council yeFatah panguva yemusangano uyu, uye akasimudzirwa kuva mutungamiri weYarmouk Forces muna 1972. Akazotora kutungamira kwemauto ePLO akaiswa muGomo reRebhanoni neBekaa Valley. Somunyanzvi wehondo ane ruzivo, aiva nebasa rokuvaka masvingo evapanduki vePalestine.