After World War I, the United Kingdom established the semi-autonomous state of Transjordan which gained independence in 1946 as the Hashemite Kingdom of Jordan. Jordan lost control of the West Bank to Israel after the 1967 Six-Day War and its long-time ruler King Hussein signed a peace treaty with Israel in 1994, permanently surrendering Jordanian claims to the West Bank. Jordan is a relatively small country located in the Middle East between Israel, Iraq, Saudi Arabia, Syria, and the West Bank, with a population of over 10 million people mostly concentrated in the capital of Amman in the northwest.