The Palestinian Uprising known as the “First Intifada” started against the Israeli occupation of Gaza and West Bank. The uprising was organised from the grass root mainly under the leadership of groups and organizations affiliated with the Palestine Liberation Organization (PLO) that operated within the Occupied Territories; Fatah, the Popular Front, the Democratic Front and the Palestine Communist Party. The uprising lasted from December 1987 until the Madrid Conference in 1991, and led to the signing of the Oslo Accords in 1993. Israeli occupation forces used brutal force against the protests, killing more than 2000 Palestinians. Thousands of Palestinians were arrested and tortured by Israel.