Izz ad-Din al-Qassam in the context of "Al-Azhar University"

A popular uprising by Palestinian Arabs in Mandatory Palestine against the British administration, known as the Great Revolt, and later the Great Palestinian Revolt or the Palestinian Revolution, lasted from 1936 until 1939. The movement sought independence from British colonial rule and the end of British support for Zionism, including Jewish immigration and land sales to Jews.

The uprising occurred during a peak in the influx of European Jewish immigrants, and with the growing plight of the rural fellahin rendered landless, who as they moved to metropolitan centres to escape their abject poverty found themselves socially marginalized. Since the Battle of Tel Hai in 1920, Jews and Arabs had been involved in a cycle of attacks and counter-attacks, and the immediate spark for the uprising was the murder of two Jews by a Qassamite band, and the retaliatory killing by Jewish gunmen of two Arab labourers, incidents which triggered a flare-up of violence across Palestine. A month into the disturbances, Amin al-Husseini, president of the Arab Higher Committee and Mufti of Jerusalem, declared 16 May 1936 as "Palestine Day" and called for a general strike. David Ben-Gurion, leader of the Yishuv, described Arab causes as fear of growing Jewish economic power, opposition to mass Jewish immigration and fear of the British identification with Zionism.

Al-Qassam Brigades, also known as the Izz al-Din al-Qassam Brigades (EQB; Arabic: كتائب الشهيد عز الدين القسام, romanized: Katāʾib al-Shahīd ʿIzz al-Dīn al-Qassām, lit. 'Battalions of martyr Izz ad-Din al-Qassam'), are the military wing of the Sunni Islamist Palestinian nationalist organization, Hamas. Led by Mohammed Deif until his death on 13 July 2024, Al-Qassam Brigades are the largest and best-equipped militant organization operating within the Gaza Strip in recent years.

Created in mid-1991, they were at the time concerned with blocking the Oslo Accords negotiations. From 1994 to 2000, Al-Qassam Brigades have claimed responsibility for carrying out a number of attacks against Israelis.