Muslim conquest Following the consolidation of Islamic hegemony over
Arabia and its nomadic Arab tribes in the
Ridda wars of 632–633, the
caliph (leader of the Muslim community)
Abu Bakr () turned the nascent Muslim state's goals toward the conquest of Syria. The conquest unfolded in three main phases, according to the historian
Fred Donner. In the first phase, Abu Bakr dispatched four armies from Medina in late 633 led by the commanders
Amr ibn al-As,
Yazid ibn Abi Sufyan,
Shurahbil ibn Hasana, all veterans of the Ridda wars, and
Abu Ubayda ibn al-Jarrah, a leading companion of Muhammad. Abu Ubayda may not have been dispatched until 636. Each commander was assigned to a different zone, with Amr entrusted over
Palestine, Yazid to the
Balqa (central
Transjordan), Shurahbil to
southern Transjordan, and Abu Ubayda to the Ghassanid stomping grounds of the
Golan Heights. The Muslim commanders mainly engaged in small-scale skirmishes in the southern Syrian countryside with local garrisons. The goal of the Muslims at the start of the conquest was likely bringing the Arabic-speaking nomadic, semi-nomadic, and settled tribesmen of the southern Syrian desert fringes under their control. The second phase began with the arrival of
Khalid ibn al-Walid and his troops to Syria in 634. Under Khalid's supreme command, the Muslim armies besieged and captured the southern Syrian urban centers of
Bosra,
Damascus,
Beisan (Scythopolis),
Pella, Gaza, and temporarily,
Homs (Emesa) and
Baalbek (Hierapolis).
Heraclius responded by deploying successive imperial armies against the Muslims. The Byzantines were decisively defeated in the resulting major battles of
Ajnadayn in Palestine and Fahl and
Yarmouk in Transjordan, all occurring in 634–636. The Muslim battlefield victories effectively ended organized resistance by the Byzantines. In the third phase, beginning about 637, the Muslim armies quickly occupied the northern Syrian countryside, while steadily conquering individual towns throughout the region whose garrisons held out alone following the breakdown of the imperial defense. Among the towns, a number of which held out until 637 or 638, were
Aleppo (Beroea) and
Qinnasrin (Chalcis) in the north,
Hama, Homs and Baalbek (the latter two possibly for the second time), Damascus possibly for the second time, and
Jerusalem. Within the next few years, the Mediterranean coastal towns of
Beirut,
Sidon,
Tyre,
Caesarea,
Antioch,
Tripoli and
Ascalon were captured by Muslim forces.
Governorship of Mu'awiya Umar had appointed Abu Ubayda ibn al-Jarrah commander of the Muslim troops in Syria in and supreme governor of the conquered regions. Abu Ubayda died in the
plague of Amwas, which devastated the Muslims at their camp near Jerusalem and caused significant loss of life throughout Syria. Umar replaced him with Yazid ibn Abi Sufyan in the southern districts of Syria and
Iyad ibn Ghanm in the northern districts. Yazid died from the plague soon after and was replaced by his brother
Mu'awiya. Umar's successor, Caliph
Uthman (), gradually expanded Mu'awiya's governorship to span all of Syria. As governor, Mu'awiya, forged strong ties with the old-established Arab tribes of Syria, which, by dint of their long service under the Byzantines, were more politically experienced than the tribesmen of Arabia, who filled the ranks of the Muslim armies. Among the Syrian tribes, the powerful
Banu Kalb and their
Quda'a confederacy gained the preeminent position in Mu'awiya's government. He also accommodated Arab newcomers, most prominently the
Kinda from
South Arabia. The tribes and commanders of Syria backed Mu'awiya in his confrontation with Caliph
Ali at the
Battle of Siffin in 657, which ended in a stalemate and an agreement to arbitrate their dispute. The arbitration talks collapsed and Mu'awiya's Syrian supporters recognized him as caliph in a ceremony in Jerusalem in 660. Ali was murdered the following year, paving the way for Mu'awiya to gain control of the rest of the Caliphate.
Umayyad period Syria became the metropolitan province of the
Umayyad Caliphate which Mu'awiya founded and whose capital was at Damascus. Syria's history under Umayyad rule was "essentially the history of the
Umayyad dynasty", according to the historians
Henri Lammens and
Clifford Edmund Bosworth. Mu'awiya had his son
Yazid I, the son of a Kalbi woman, recognized as his successor. Yazid I () was opposed by the people of the
Hejaz, whose revolt against him was crushed by Syria's troops at the
Battle of al-Harra. The Syrians proceeded to
besiege Mecca in 683, but withdrew to Syria after Yazid I died. The Meccan leader of the revolt,
Ibn al-Zubayr, was recognized as caliph across much of the Muslim empire, while Yazid I's son and successor,
Mu'awiya II, succumbed to the plague. The Kalb and other loyalist tribes elected another Umayyad,
Marwan I, as caliph and he moved to secure the dynasty's Syrian heartland. With these tribes' support, he defeated the
Qays tribes and other supporters of Ibn al-Zubayr at the
Battle of Marj Rahit, north of Damascus, in 684. Under his son and successor,
Abd al-Malik (), Syrian troops reconquered the rest of the Caliphate and killed Ibn al-Zubayr in a
second siege of Mecca. A standing army composed of the Syrian tribal soldiery was established under this caliph and his sons and successors. Abd al-Malik inaugurated a more Arab–Islamic government in Syria by changing the language of its bureaucracy from Greek to Arabic, switching from Byzantine coinage to a strictly Islamic currency, and building the
Dome of the Rock in Jerusalem, which he may have promoted as an additional center of Muslim pilgrimage to Mecca. Abd al-Malik's son and successor,
al-Walid I (), ruled with autocratic tendencies and less tolerance for the non-Muslims in Syria and the empire in general, which reached its greatest territorial extent during his reign. He largely demolished the Christian basilica of St. John in Damascus and built in its place the landmark
Great Umayyad Mosque. He achieved great popularity among the Syrian Arabs. During his rule and that of his successors, Damascus retained its role as the administrative capital of the empire, but the caliphs increasingly resided in their country estates in the
Syrian steppe. After a period of stagnation, the caliph
Hisham () restored the prestige of the Umayyad Caliphate through his administrative reforms, state-building and austerity, though the conquests ground to a halt. His successor,
al-Walid II, was assassinated, sparking the
Third Muslim Civil War. The next caliph,
Yazid III, died after a few months, followed by the weak rule of
Ibrahim.
Marwan II took control in late 744, crushed his Syrian tribal opponents, and shifted the capital to
Harran, outside of Syria, which increased Syrian opposition to his rule.
Post-Umayyad period Bilad al-Sham became much less important under the
Abbasid Caliphate, which succeeded the Umayyads in 750. The Abbasids moved the capital first to
Kufa, and then to
Baghdad and
Samarra, all of which were in
Iraq, which consequently became their most important province. The mainly Arab Syrians were marginalized by
Iranian and
Turkish forces who rose to power under the Abbasids, a trend which also expressed itself on a cultural level. From 878 until 905, Syria came under the effective control of the
Tulunids of Egypt, but direct Abbasid control was re-established soon thereafter. It lasted until the 940s, when the province was partitioned between the
Hamdanid Emirate of Aleppo in the north and
Ikhshidid-controlled Egypt in the south. In the 960s the Byzantine Empire under
Nikephoros II Phokas conquered much of northern Syria, and
Aleppo became a Byzantine tributary, while the southern provinces passed to the
Fatimid Caliphate after its conquest of Egypt in 969. The division of Syria into northern and southern parts would persist, despite political changes, until the
Mamluk conquest in the late 13th century. ==Administrative history==