After the Six-Day War, Jordan lost control of the West Bank to Israel. However, the Palestinians in the West Bank lost neither their citizenship nor their seats in the Jordanian parliament. About 300,000 Palestinians fled to Jordan. In 1970, a conflict broke out between the Jordanian Armed Forces led by King Hussein and the Palestine Liberation Organization led by Yasser Arafat. This conflict was known as Black September. After the war, Jordan expelled the PLO. Palestinians in the West Bank would retain their Jordanian citizenship until Jordan renounced all claims to the West Bank on 31 July 1988. Jordan later recognized the PLO as "the sole legitimate representative of the Palestinian people."