Seljuk Expedition into Iraq

Timeline

1. 1025Khurasan · KhurasanAfter consolidating Central Asia and Khurasan, Tughril gathered cavalry and vassal forces and set out westward along traditional trade routes, aiming at northern Mesopotamia and the Jabal (western Iran) corridor, seeking to break through the western edge of Ghaznavid power.
2. 1025Mosul · MosulThe Seljuk army entered northern Iraq and clashed with Ghaznavid local garrisons and vassals. The line from Mosul to the Diyala River became a contested battlefield; Seljuk fast cavalry harassed supply lines, forcing the Ghaznavid frontier system to withdraw.
3. 1025–1026Baghdad · BaghdadAlthough the expedition did not directly capture Baghdad, the Abbasid caliphal court and the Buyid regents already felt the Seljuk military pressure. The westward advance proved the Seljuks' capacity for cross-regional expeditions and changed how the various political actors in Iraq assessed the steppe Turkic threat.