The Palestine Liberation Organization (PLO; Arabic: منظمة التحرير الفلسطينية, romanized: ) is a Palestinian nationalist coalition that is internationally recognized as the official representative of the Palestinian people in the occupied Palestinian territories. It is currently represented by the Palestinian Authority based in the West Bank city of Al-Bireh. Founded in 1964, it initially sought to establish an Arab state over the entire territory of the former Mandatory Palestine, advocating the elimination of Israel. Mediated talks between the Israeli government and the PLO in 1993 (the Oslo I Accord) resulted in the PLO recognizing Israel's legitimacy and accepting United Nations Security Council Resolution 242, which mandated Israel's withdrawal from occupied territories, while Israel recognized the PLO as a legitimate authority representing the Palestinian people. Despite the Israel–PLO Letters of Mutual Recognition (1993), in which PLO leader Yasser Arafat renounced violence against Israel, the PLO engaged in militant activities during the Second Intifada (2000–2005). On 29 October 2018, the PLO Central Council suspended the Palestinian recognition of Israel. As the officially recognized government of the State of Palestine, it has enjoyed United Nations observer status since 1974. Prior to the Oslo Accords, the PLO's militant wings engaged in acts of violence against both the Israeli military and civilians, within Israel and abroad. The United States designated it as a terrorist group in 1987, though a presidential waiver has permitted American–PLO contact since 1988.