Ku sii qor faqradan - Xamaas si rasmi ah ayaa loo aasaasay wax yar kadib, 14kii Diseembar 1987, sameynta shabakado kale oo la mid ah "al-Mujahidun al-Filastiniun", sida Abdullah Azzam Brigades. badhtamihii 1991, intii lagu guda jiray kacdoonkii ugu horeeyay ee Falastiin
(1987-1994), Guutada Izz ad-Din al-Qassam waxaa loo aasaasay inay siiso Xamaas awood millatari, ka dibna loo yaqaan laanta hubaysan ee Xamaas.