1534–1623: First Ottoman period Conquest of Iraq Before
Sultan Süleyman I personally entered Iraq, the foundation of the conquest was laid by
Grand Vizier İbrahim Pasha, who departed from Istanbul in late 1533 and spent the winter in
Aleppo preparing the advance. From this staging ground, İbrahim Pasha oversaw military logistics and gathered extensive intelligence from the eastern frontier. Among the most valuable correspondents was Süleyman Paşa, a former governor (
Beylerbeyi) of
Diyarbekir and then of
Anatolia, who reported that
Shah Tahmasb I of the
Safavid Empire was likely wintering in
Kum, deterred from movement by the threat of an Uzbek offensive under Ubeyd Han advancing from Merv. Ottoman intelligence indicated that the
Turkoman Tekelü Mehmed Han, an
Qizilbash commander recently appointed as governor of Baghdad, had stocked the city with several years' worth of supplies but maintained only limited local support. According to information gathered by Seyyid Ahmed Bey, the Bey of Mosul, a local Arab notable of northern Iraq, and Hüseyin Büşra, another Arab ally of the Ottomans, Tekelü Mehmed had alienated surrounding tribal elements and was unlikely to submit peacefully. Building on this intelligence, İbrahim Pasha advanced steadily into northern Iraq and eastern Anatolia, where he cultivated alliances across a mosaic of local powers:
Kurdish, Arab, and
Turcoman. In many of these regions, populated by a mix of these groups, Ottoman troops were seen as liberators from Safavid Shi‘i control. Meanwhile, tribes loyal to the Ottomans, like that of Hüseyin Büşra, operating in the
Kirkuk–
Wasit corridor, actively supported the campaign through intelligence gathering and armed patrols. As areas fell under control, İbrahim Pasha quickly instituted Ottoman administrative rule, appointing local allies and trusted commanders as
sancakbeyis, complete with fiscal salaries (measured in
akçes), while restoring Sunni religious practice, including the public
khutba in Süleyman's name. By the time Sultan Süleyman joined the army in the summer of 1534, İbrahim Pasha had already weakened the Safavid position in Iraq, setting the stage for the Ottoman entry into Baghdad later that year. In the decades following the conquest, Ottoman authority in Iraq’s major cities rested on both
military garrisons and religious institutions. Imperial and provincial elites established religious endowments (
waqfs), while the state supervised the appointment of clerics such as
imams and
teachers. Historian Faisal Husain argues that this alliance of throne and altar echoed a pattern that had underpinned most political projects in Iraq since the era of the
Sumerian city-states.
1623–1749: Safavid interlude and reconquest Iraq under Safavid occupation Early 17th-century
Safavid sources reflect that Baghdad, Erbil, Kirkuk, and Mosul were treated as parts of an integrated military-administrative zone, consistently approached as a unified strategic zone within the region referred to as Iraq. Following the
Safavid conquest of Baghdad in 1623, under Shah Abbas I, command was quickly extended northward. Qārcaqāy Khān was dispatched to secure Mosul, while Khan Ahmad Ardalān was sent to
Kirkuk and
Shahrizor, where Ottoman garrisons retreated or fled in disarray following the loss of Baghdad. Administrative appointments further reinforced the Safavid treatment of Baghdad, Mosul, Kirkuk, and Shahrizor as a single, integrated military-administrative zone: Zeynal Beg, tasked with defending Baghdad, was also ordered to operate in the Mosul frontier. Similarly, Qāsem Khan, appointed as governor of the Mosul province, fortified the city and directed local military efforts as part of the broader defense of Iraq. In later passages, Ottoman troop movements and local tribal responses across Mosul, Kirkuk, and Baghdad are described as interconnected, suggesting a cohesive operational and administrative Iraq within Safavid strategic planning.
Ottoman reconquest of Iraq (1639) (1638) by
Caspar Luyken. Ottoman-Safavid rivalry over Iraq continued for much of the 16th and early 17th centuries. The
Peace of Amasya (1555) marked the first formal territorial division between the two empires, and the issue was conclusively resolved with the
Treaty of Zuhab in 1639. The treaty confirmed Ottoman sovereignty over Baghdad, Basra, and Mosul, solidifying control over the region. The agreement affirmed Ottoman authority over Iraq.
Nader Shah's Iraqi campaign (1732–1733) . In 1733, during renewed conflict between the Ottoman Empire and the Persian ruler
Nadir Shah, Persian forces crossed the Iraqi frontier (
Irak sınırını aşarak) and launched an assault on Erbil and
Kirkuk. Ottoman sources describe the event as a major military incursion into imperial territory. In response,
Topal Osman Pasha, the imperial commander (
serasker), led an army of 170,000 troops and defeated the Persian forces near Baghdad. Following this initial victory, however, Baghdad's governor, Ahmed Pasha, withdrew, citing a lack of provisions, enabling a surprise counterattack by Nadir Shah. Topal Osman Pasha was killed in the ensuing battle near Kirkuk. The city capitulated under terms that guaranteed the safety of its inhabitants. The defense of Mosul was led by its governor, Hüseyin Pasha, who rallied the population, repaired fortifications, and successfully repelled a six-day siege. In subsequent campaigns, Hasan Pasha, governor of Mosul and imperial
serasker, mobilized tribal allies and repelled further Iranian advances.
1749–1831: Mamluk period The Mamluk period saw
Georgian-origin Mamluks ruling Baghdad with considerable autonomy from Istanbul, while maintaining nominal loyalty to the Ottoman sultan. This era was marked by fiscal reform, military reorganization, and political stability, but ended with the Ottoman reconquest under
Ali Rıza Pasha in 1831.
1831–1869: Early Ottoman reassertion Ali Rıza Pasha's centralization of Iraq (1831-1834) In a letter issued in 1830 during the final year of Mamluk rule, Sultan Mahmud II addressed the administrative situation in Iraq and the conduct of Davud Pasha, the governor of Baghdad. He wrote: "I know
Davud Pasha is the vali of Baghdad, but over time he has changed his position and his blindness has surpassed his righteousness... The forms of injustice and hostility imposed on the people of the
Hıtta of Iraq increase day by day... In order to achieve our will, we have added the Baghdad, Basra and Shahrizor eyalets to one ministerial unit." Following the dismissal of the last Mamluk governor,
Davud Pasha, in 1831, Baghdad was brought under direct Ottoman rule, marking a pivotal shift in the administrative organization of Iraq. Appointed as governor by the Sublime Porte,
Ali Rıza Pasha not only assumed control over Baghdad but also began to act as a regional administrator, asserting authority over the neighboring provinces of Mosul and Basra, which had previously functioned with considerable autonomy. in 1832. The
Jalili family of Mosul, long entrenched as local rulers, was removed from power during Ali Rıza Pasha's tenure. In 1831, he appointed an Umari Pasha to replace Yahya Pasha Jalili as governor of Mosul, marking the first instance of Baghdad asserting control over the northern province. Although Yahya briefly retook Mosul by force in 1833, Ali Rıza Pasha launched a military campaign, recaptured the city, and had Yahya exiled to
Tekirdağ. By 1834, under İnce Bayraktar Mehmed Pasha, the Baghdad-based administration appointed Mehmed Said Pasha as governor of Mosul, effectively institutionalizing Mosul's subordination to Baghdad. Ahead of his military campaign, Ali Rıza Pasha sought support from major regional actors: while the sheikh of
Ka‘b refused and sided with Davud Pasha, both
Shammar al-Jarba and Kurdish
Mehmed Bey of Rawanduz backed the Ottoman intervention. Meanwhile, Davud attempted to secure loyalty by distributing robes of honor (
hil‘ats). The
Sublime Porte issued a decree offering Davud and his family a full pardon if he left peacefully. When news of Davud's dismissal and Ali Rıza's appointment reached Basra and Kirkuk, it was met with public celebration, while in Baghdad, crowds plundered the provincial palace, demonstrating support for the new governor. Facing growing hostility and weakened by a plague that had decimated his forces, Davud Pasha fled and was captured without major resistance. He was later exiled to
Bursa. His removal marked the recognition of Baghdad's new central role in the administration of Ottoman Iraq. still exercised semi-autonomous authority under the
Mamluk administration of Iraq.
Consolidation of Baghdad's authority in northern Iraq (1833–1838) The fall of the Mamluks and the
Jalilis was soon followed by campaigns against the Kurdish emirates of
Rawanduz,
Bahdinan, and
Baban, which had operated with near independence in northern Iraq. Although the emirates had long been nominally tied to the
governor of Baghdad, their real autonomy persisted through the early 1830s. Between 1833 and 1838, Ottoman forces, coordinated by
Ali Rıza Pasha and other provincial commanders, intervened militarily and administratively, bringing these emirates under direct rule. The emirate of Bahdinan was disbanded, Rawanduz's ruler
Mir Kör was exiled, and Mehmed Said Pasha was appointed by Baghdad to govern
Amadiyah. This process marked the extension of Baghdad's reach into northern Iraq and the collapse of one of the last pockets of local autonomy in the region.
Struggles over land, taxation, and provincial administration (1838–1847) Following the centralization of Iraq under Baghdad by 1838, the Ottoman state shifted its focus from military reassertion to administrative integration. This next phase was marked by efforts to impose fiscal and bureaucratic reforms aligned with emerging
Tanzimat principles, even before the official declaration of the
Gülhane Edict in 1839. Governors appointed to Baghdad, such as İnce Bayraktar Mehmed Pasha and later
Necip Pasha, were tasked with implementing imperial mandates including cadastral surveys (
tapu), tax centralization, and the regulation of provincial appointments. However, the reforms faced entrenched resistance. The introduction of provincial tax collection offices (
muhassıllık), already implemented in other provinces since the late 1830s, was delayed in Iraq due to fears of instability and local backlash. Attempts to extend the tapu system were obstructed by tribal leaders and urban notables who feared conscription and loss of fiscal autonomy, discouraging land registration and undermining state tax surveys. Despite the formal goals of centralization and reform, Iraq remained constrained by entrenched administrative dysfunction. Between 1831 and 1872, roughly two-thirds of Baghdad's provincial administrations were marked by high-level corruption, including embezzlement, bribery, and extortion by governors such as
Necip Pasha and Mustafa Nuri Pasha. Investigations into their conduct were opened but ultimately dropped or failed to yield convictions. This administrative breakdown hindered the Tanzimat's effectiveness in Iraq and undermined state legitimacy in the eyes of tribal and urban populations.
Institutionalizing tanzimat reforms in Iraq (1847–1851) By 1847, the Ottoman state sought to replace Iraq's patchwork governance with formal administration. The creation of provincial councils (
meclis-i kebîr) in Baghdad aimed to curb military dominance and anchor local rule within a bureaucratic framework. These councils included imperial officials and local notables, reflecting a strategy of controlled inclusion: bringing elites into government while limiting their autonomy. To support this apparatus, the state revived direct tax collection (
muhassıllık) and restructured tax farming, hoping to stabilize revenues and bypass local intermediaries. Yet governors like
Necip Pasha (1842–1849) struggled to implement reforms beyond Baghdad. Necip's tenure was marked by embezzlement, the misuse of public funds, and an inability to enforce reform mandates. Though imperial investigations were launched, no accountability followed.
1869–1917: Reform, modernization, and decline Midhat Pasha and the high tide of reform (1869–1872) The appointment of
Midhat Pasha as governor of Baghdad in 1869 marked the most ambitious phase of Ottoman reform in Iraq. Backed by the central government and imbued with
Tanzimat ideals, Midhat undertook sweeping changes to transform Iraq from a militarized frontier into a modern, centrally administered province. His reforms focused on infrastructure, administration, taxation, and education, and are often seen as laying the groundwork for the
modern Iraq. and his Erkân-i Vilâyet (Governing People of Wilayah) photographed together, along with writers and intellectuals, Baghdad, 1870. , originally constructed in 1869 under Governor
Midhat Pasha as Baghdad's state printing press. One of his earliest measures was the completion of the land registration (
tapu) system, which he enforced across Baghdad, Basra, and Mosul to clarify land ownership, increase tax collection, and curb tribal autonomy. He also implemented standardized taxation, ended tax farming in key areas, and introduced municipal councils with elected local representation. Midhat's administration built new roads connecting Baghdad to
Samarra,
Hillah, and
Basra, expanded steam navigation on the Tigris, and established a telegraph line from Baghdad to Istanbul. He also founded Iraq's first modern secondary schools (
rüşdiye) and improved the provincial bureaucracy by training local officials. Though his governorship lasted only three years, Midhat's reforms left a lasting institutional legacy. Baghdad's influence as the administrative capital of Ottoman Iraq increased, and his model of centralized, service-based governance would be referenced, though never fully replicated, by later governors.
Reform after Midhat: continuity and centralization (1872–1885) Although
Midhat Pasha's departure in 1872 slowed the pace of reform, his administrative blueprint remained influential. Successive governors continued to expand state infrastructure, bureaucracy, and military authority from Baghdad. The
Vilayet Law of 1864, more fully applied after 1872, led to the creation of new subdistricts (
kaymakamlıks) and councils (
meclis), particularly in regions previously governed through indirect tribal rule. Basra, Mosul, and Kirkuk all saw increasing bureaucratic integration under Baghdad's oversight. For example, as early as 1850, a request to establish a
meclis-i kebîr in
Shahrizor was denied by the
Sublime Porte on the grounds that such a council should first be established in Baghdad. The reasoning was that although Shahrizor was a separate province at the time, it was considered to be part of the Iraq region (
hıtta-i Irakiyyenin bir kıt‘a-i müfrezesi), underscoring how the reforms were structured according to a clear provincial hierarchy that placed Baghdad at the center. In a telegram dated September 24, 1879, Feyzi Pasha, the Governor of Mosul, appealed to Istanbul for an exemption on grain import duties, arguing that Mosul, being counted (
maʿdûd) among the lands of
Hıtta-i Irakiyye, should receive the same treatment as Baghdad. His appeal emphasized the region's interdependence and the risk of famine. A major focus of this period was the strengthening of civil-military control. Officials doubled as tax collectors and local commanders, while provincial governors frequently rotated their subordinates to prevent the entrenchment of local alliances. In tribal zones, such as
Nasiriyah,
Amarah, and
Sulaymaniyah, the state appointed tribal sheikhs to official posts, most notably the
Muntafiq leader Abdul Ghafur al-Saadun, who became
mutasarrıf of
Nasiriyah in the 1880s. This co-optation strategy reflected a shift from confrontation to managed loyalty. In parallel, the government continued to expand public services: new
rüşdiye schools, telegraph stations, and steamship patrols were introduced along the Tigris and Euphrates, increasing state presence in previously peripheral zones. While tribal unrest remained a challenge, the infrastructure and administrative reach laid during this phase marked a significant deepening of Ottoman control.
Hamidian realignment and political centralization (1885–1908) Under
Sultan Abdülhamid II, Ottoman Iraq entered a new phase of imperial consolidation. Unlike the reformist Tanzimat governors, the
Hamidian administration emphasized centralized control from Istanbul, surveillance, and loyalty over local experimentation. One of the most significant developments was the expansion of imperial land ownership: from the late 1880s onward, Abdülhamid acquired vast tracts of land in Baghdad, Hillah, and the southern
Euphrates, officially managed by the Ministry of Religious Endowments (
Evkaf Nezareti). These purchases were intended to secure tax revenue and weaken the autonomy of large tribal landholders. Administrative centralization also intensified. Governors and
mutasarrıfs were appointed directly from Istanbul and rotated frequently to prevent local entrenchment. The provincial councils (
meclis) remained in place but functioned increasingly as rubber-stamp bodies, with limited influence over fiscal or legal policy. Censorship and bureaucratic hierarchy expanded sharply, and the use of Arabic in official correspondence was discouraged in favor of Ottoman Turkish, further marginalizing local elites. At the same time, Abdülhamid's regime invested in communication infrastructure to enhance central control. Telegraph lines connected Baghdad and Basra to Istanbul, and a railway survey was conducted in preparation for the Baghdad Railway project, although construction did not begin until after 1903. These efforts, along with urban policing, school inspections, and increased documentation of land and population, signaled a shift from reform to control. During this same period, the Ottoman state increasingly viewed Iraq not only as an administrative zone but as a strategic and ideological frontier with Iran. In response to growing Shiite missionary activity sponsored by Iranian clerics in the shrine cities of Najaf, Karbala, and Samarra, Ottoman officials enacted a series of region-wide countermeasures. These included prohibiting land purchases by Iranian pilgrims, promoting Sunni religious education, restricting Shiite presses, and discouraging intermarriage with Iranian nationals. Such policies were coordinated across Iraq to foster a sense of loyalty to the Ottoman state. Despite these initiatives, discontent grew among tribal groups and Arab urban elites who felt increasingly excluded from meaningful participation. The growing gulf between imperial centralization and provincial realities set the stage for the political upheaval that would follow in the aftermath of the
Young Turk Revolution in 1908. == Economy ==