at the beginning of the 20th century, a third attempt was made to conquer this territory by another al-saud, abdulaziz ibn saud. he gained the support of the ikhwan, a tribal army inspired by wahhabism and led by sultan ibn bijad and faisal al-dawish, which had grown quickly after its foundation in 1912. with the aid of the ikhwan, ibn saud captured hasa from the ottoman empire in 1913.