Kammala wannan jumla: A 1987, 'yan Falasdinawa da dama sun mutu a wani hatsarin mota da ya shafi wani direban Isra'ila, da kuma abubuwan da suka biyo baya
Tashin hankalin Palasdinawa kan mamayar Isra'ila a Yammacin Kogin Jordan da Gaza ya jagoranci Yassin da wasu Palasdinawa shida don kafa Hamas a matsayin wani ɓangare na 'Yan Uwa Musulmi na Masar. Sabon rukunin ya sami goyon baya daga ƙungiyoyin sadaka da ƙungiyoyin zamantakewar da ke da alaƙa da 'yan uwantaka waɗanda suka riga sun sami ƙarfi a cikin yankunan da aka mamaye. Taƙaitaccen sunan "Hamas" ya fara bayyana ne a 1987 a cikin wata takarda da ta zargi ayyukan leken asirin Isra'ila da lalata ɗabi'ar matasa Falasdinawa a matsayin wani ɓangare na aikin Mossad na abin da Hamas ta kira "masu haɗin gwiwa". Duk da haka, sojojin Isra'ila da leken asirin har yanzu suna mai da hankali kan Fatah, kuma sun ci gaba da yin hulɗa da masu fafutukar Islama na Gaza. Shugabannin Islama da yawa, gami da babban mai kafa kungiyar Hamas Mahmoud Zahar, sun gana da Yitzhak Rabin a matsayin wani bangare na "taro na yau da kullun" tsakanin jami'an Isra'ila da Palasdinawa da ba su da alaƙa da PLO.