Hamas is a Palestinian nationalist and Islamic fundamentalist socio-political organization based in the Gaza Strip with an associated paramilitary force, the al-Qassam Brigades. Hamas (حماس) Ḥamās is an acronym of حركة المقاومة الاسلامية Ḥarakat al-Muqāwamat al-Islāmiyyah, meaning "Islamic Resistance Movement".
Hamas was established during the First intifada against the Israeli occupation in 1987, and has its origins in Egypt's Muslim Brotherhood movement, which had been active in the Gaza Strip since the 1950s and gained influence through a network of mosques and various charitable and social organizations. In the 1980s the Brotherhood emerged as a powerful political factor, challenging the influence of the PLO, and in 1987 adopted...