| Conflict: | Al-Hasa Expedition |
| Native Name: | Arabic: حملة الاحساء |
| Date: | 20 April-3 June, 1871 |
| Place: | al-Hasa (now al-Ahsa Governorate, Saudi Arabia) |
| Result: | Ottoman Victory The Ottoman Empire's control of Al-Ahsa |
| Combatant1: | Ottoman Empire Sheikhdom of Kuwait Al-Muntafiq *Arab tribes |
| Combatant2: | Emirate of Nejd |
| Commander1: | Midhat Pasha Abdullah II Al-Sabah Mubarak Al-Sabah Abdullah bin Faisal bin Turki Al Saud *Nasir Pasha |
| Commander2: | Saud bin Faisal bin Turki Al Saud |
| Strength1: | 5,000 Ottoman regular soldiers 3000 from Al-Muntafiq Badia 1000 from Kuwait Badia 9 Ottoman warships 80 Kuwaiti sailing ships |
| Strength2: | unknown |
The Al-Hasa Expedition was an Ottoman military campaign to annex the El-Hasa region of eastern Arabia.[1] Ostensibly launched to assist Imam Abdullah bin Faisal in reclaiming control over Najd from his brother Saud bin Faisal, the underlying motive was Medhat Pasha's ambition to extend Ottoman dominion over the Persian Gulf.[2]
Several months into his reign, on March 29, 1871, Imam Abdullah bin Faisal dispatched his envoy Abdul Aziz bin Suwailem to Medhat Pasha, the governor of Baghdad, seeking assistance in the conflict against his brother Saud bin Faisal. Saud controlled the regions of Al-Ahsa and Qatif, territories that had been wrested it from Imam Abdullah bin Faisal.[3]
The campaign departed Basra on April 20, comprising five infantry columns, a cavalry division and artillery units under the command of Lieutenant General Naser Pasha. Accompanying the force was the Sheikh of Al-Muntafiq, leading approximately 1,000 volunteer horsemen from his tribe. Additional from various other Iraqi tribes convened in the town of Az Zubayr. Muhammad Saeed Effendi, son of the captain of supervision in Basra, also joined the commander in the expedition.
A naval contingent from Kuwait joined the campaign, provided by the ruler of Kuwait, Sheikh Abdullah II Al-Sabah, who personally led a fleet of eighty ships. The fleet arrived at Ras Tanura on May 13, 1871, coinciding with the Ottoman infantry’s land march towards Al-Ahsa. From Ras Tanura, the forces progressed towards Qatif, engaging in fierce battles with the Imam Saud bin Faisal’s supporters, resulting in Qatif’s capture on June 3, 1871. Subsequently, the campaign advanced to Dammam then to Hofuf.
Following the Ottoman conquest of Al-Ahsa, Midhat Pasha reneged on his commitment to Imam Abdullah bin Faisal, and the province of Al-Ahsa was separated from the second Saudi state. Al Hasa was reincorporated into the Ottoman Empire and became known as the Najd Sanjak. For his significant contributions to the campaign, Sheikh Abdullah II Al-Sabah the ruler of Kuwait was bestowed the honorific title of Kaymakam by the Ottoman authorities.
http://www.muqatel.com/openshare/Mostlhat/Alaam/Mokatel13_1-2.htm_cvt.htmhttps://web.archive.org/web/20190501161612/http://aljzl.com/ar/2017/08/01/553/