Hejaz and, then, on 27 January 1927 he took the title of King of Nejd (his previous title having been 'Sultan'). After the conquest of the Hejaz, the Ikhwan leaders wanted to continue the expansion of the Wahhabist realm into the British protectorates of Transjordan, Iraq and Kuwait, and began raiding those territories. Abdul-Aziz, however, refused to agree to this, recognizing the danger of a direct conflict with the British. The Ikhwan therefore revolted but were defeated in the Battle of Sabilla in 1930, where the Ikhwan leadership were massacred.
In 1932, the two kingdoms of the Hejaz and Nejd were united as the Kingdom of Saudi Arabia.
From the foundation of the State to the present
The new kingdom was one of the poorest countries in the world, reliant on limited agriculture and pilgrimage revenues. However, in 1938 vast reserves of oil were discovered in the Al-Hasa region along the coast of the Persian Gulf and full-scale development of the oil fields began in 1941. Oil provided Saudi Arabia with economic prosperity and substantial political leverage internationally. Cultural life rapidly developed, primarily in the Hejaz, which was the center for newspapers and radio. But the large influx of foreigners to work in the oil industry increased the pre-existing propensity for xenophobia. At the same time, the government became increasingly wasteful and extravagant. By the 1950s this had led to large governmental deficits and excessive foreign borrowing.
King Saud succeeded to the throne on his father's death in 1953. However, an intense rivalry between the King and his half-brother, Prince Faisal emerged, fueled by doubts in the royal family over Saud's competence. As a consequence, Saud was deposed in favor of Faisal in 1964. The major event of King Faisal's reign was the 1973 oil crisis, when Saudi Arabia, and the other Arab oil producers, tried to put pressure on the US to withdraw support from Israel through an oil embargo
