Buuxi weedha soo socota: Xamaas waxaa si rasmi ah loo aasaasay wax yar ka dib, 14kii Diseembar 1987, iyadoo la sameeyay shabakado kale oo la mid ah "al-Mujahidun al-Filastiniun", sida Abdullah Azzam Brigades. badhtamihii 1991, intii lagu jiray
Intifada koowaad ee Falastiin (1987-1994), Guutada Izz ad-Din al-Qassam waxaa loo aasaasay inay siiso Xamaas awood militari, ka dibna loo yaqaan laanta hubaysan ee Xamaas.