1891, the Al Saud were conclusively defeated by the Al Rashid, who drove the Saudis into exile in Kuwait. Meanwhile, in the Hejaz, following the defeat of the First Saudi State, the Egyptians continued to occupy the area until 1840. After they left, the Sharifs of Mecca reasserted their authority, albeit with the presence of an Ottoman governor and garrison. Arab Revolt By the early 20th century, the Ottoman Empire continued to control or have suzerainty (albeit nominal) over most of the peninsula. Subject to this suzerainty, Arabia was ruled by a patchwork of tribal rulers (including the Al Saud who had returned from exile in 1902—see below) with the Sharif of Mecca having preeminence and ruling the Hejaz. In 1916, with the encouragement and support of Britain and France (which were fighting the Ottomans in the First World War), the sharif of Mecca, Hussein bin Ali, led a pan-Arab revolt against the Ottoman Empire, with the aim of securing Arab independence and creating a single unified Arab state spanning the Arab territories from Aleppo in Syria to Aden in Yemen. The Arab army comprised bedouin and others from across the peninsula, but not the Al Saud and their allied tribes, who did not participate in the revolt partly because of a long-standing rivalry with the Sharifs of Mecca and partly because their priority was to defeat the Al Rashid for control of the interior. Nevertheless, the revolt played a part in the Middle-Eastern Front and tied down thousands of Ottoman troops, thereby contributing to the Ottomans' World War I defeat in 1918. However, with the subsequent partitioning of the Ottoman Empire, the British and French reneged on promises to Hussein to support a pan-Arab state. Although Hussein was acknowledged as King of the Hejaz, Britain later shifted support to the Al Saud, leaving him diplomatically and militarily isolated. The revolt, therefore, failed in its objective to create a pan-Arab state, but Arabia was freed from Ottoman suzerainty and control. Unification In 1902, Abdul-Aziz Al Saud, leader of the Al Saud, returned from exile in Kuwait to resume the conflict with the Al Rashid, and seized Riyadh—the first of a series of conquests creating the Third Saudi State, and ultimately leading to the creation of the modern state of Saudi Arabia in 1930. The main weapon for achieving these conquests was the Ikhwan, the Wahhabist-Bedouin tribal army led by Sultan