| Conquest of al-Hasa | |||||||
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| Part of Unification of Saudi Arabia | |||||||
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Sultanate of Nejd (Saudi) victory
The Conquest of al-Hasa was achieved by the Saudi forces of ibn Saud with support from the Ikhwan in 1913. The Oasis of al-Hasa was conquered from an Ottoman garrison, who had controlled the area from 1871.
Although Shia Islam religious community leaders negotiated a quick surrender and recognition of the Sunni Islam Saudi political authority in exchange for leniency, the Shia communities in al-Hasa and Qatif were subjected to harsh oversight and cruelty.