romanized: Vilâyet-i Yemen) was a first-level administrative division (vilayet) of the Ottoman Empire. At the beginning of the 20th century it reportedly had an area of 200,000 square kilometres (77,200 sq mi).[2] The population for the vilayet is given by the 1885 Ottoman census as 2,500,000.[2]
Broadly speaking, the vilayet was bounded by the
Aden protectorate to the south, the Red Sea to the west and the 45th meridian east to the east. The southern border was demarcated by the Anglo-Turkish Boundary Commission of 1902–1905, while the limit of the eastern border was left vague.[3]
In the late 19th century, the Zaidis rebelled against the Turks, and Imam
Yahya ibn Mohammed led the revolt against the Turks in 1904–1905, and forced them to grant important concessions to the Zaidis.[7] The Ottoman agreed to withdraw the civil code and restore sharia in Yemen.[7]
In 1906, the Idrisi leaders of Asir rebelled against the Ottomans. By 1910 they controlled most of Asir, but they were ultimately defeated by Turkish and Hejazi forces.[6]
Ahmet İzzet Pasha concluded a treaty with Imam Yahya in October 1911, by which he was recognised as temporal and spiritual head of the Zaidis, was given the right to appoint officials over them, and collect taxes from them. The Ottomans maintained their system of government in the Sunni-majority parts of Yemen.[7]
In March 1914, the Anglo-Turkish Treaty delimited the border between Yemen and the Aden Protectorate.[7] When World War I broke out, Imam Yahya remained nominally loyal to the Sultan, but tried to negotiate with Britain at the same time. The Asir, on the other hand, joined Britain as soon as the war began.[7] The Arab Revolt in Hejaz cut off Yemen from the rest of the Ottoman Empire, and the imam took the opportunity to establish his power over all of Yemen.[7]
Turkish forces withdrew in 1918, and Imam Yahya strengthened his control over northern Yemen creating the