Yemeni–Ottoman conflicts

The Ottomans weren't able to capture cities north of Sana'a in Upper Yemen such as Sa'dah, Shaharah and Hajjah remained in the hands of Yemeni Zaidi imamz.

Al Qahirah in Ta'izz would fall within 7 weeks, including the city itself Jabal Al Aghbar in Ash Shamayatayn District were attacked by Ottomans and Zaidi defenders were routed in 29 April 1569 in a battle, shortly afterwards the Ottomans took control of Aden on 14 May 1569.

Ottoman forces would make their journey north to Wadi Maytam near Jibla in which a battle ensued with the Zaidi launching an ambush with 10,000 Men on 12 June 1569 however Sinan's forces thwarted the Zaidi attack with the Inhabitants of Jibla and nearby areas submitting to Ottoman Rule.

In the 1830s, the Ottomans requested Muhammad Ali of Egypt to try to conquer the Arabian peninsula (including Yemen).

In April 1840, due to pressure from Russia, Austria, and the British Empire, Muhammad Ali withdrew from the Arabian peninsula.

In April, they captured Al Hudaydah, and in July, they entered Sana'a on the invitation of the Imam, who wished for Yemen to become a vassal state under Ottoman protection.

[1] In 1891, a violent rebellion occurred in Yemen, due to the irreligious conduct of the Ottoman Empire.

[5] On 5 March, a 4,000 strong Ottoman force departed from Hudaydah to relieve the siege of Sana'a, but was unable to do so.

[3] In April 1905, the Yemenis captured Sana'a,[a] and demanded an armistice should the Ottoman garrison be spared, which was accepted.

[1] After the failure of negotiations, Ottoman forces consisting of 6 battalions led by Ahmad Faydi Pasha violated the armistice,[1] and started a three-pronged[3] offensive from Manakhah on 16 July 1905,[1] and captured Sana'a on 29[1] or 30[3] August.

[1] In Hudaydah, the Ottomans regrouped, marching north and recovering control of lost areas near Manakhah.

[1] Five years of negotiations ensued, and ended with the signing of the Treaty of Daan on 9 October 1911, which led to Yemen becoming a vassal state of the Ottoman Empire.