Battle of Marj al-Rahit
684 CE.
Shown on the map at 33.584°, 36.462°.
The Battle of Marj Rahit (Arabic: يوم مرج راهط, romanized: Yawm Marj Rāhiṭ) was one of the early battles of the Second Fitna. It was fought on 18 August 684 between the Kalb-dominated armies of the Yaman tribal confederation, supporting the Umayyads under Caliph Marwan I, and the Qays under Al-Dahhak ibn Qays al-Fihri, who supported the Mecca-based Caliph Abd Allah ibn al-Zubayr. The decisive Umayyad victory consolidated their power over Bilad al-Sham (Islamic Syria), paving the way for their eventual victory in the war against the Zubayrids. However, it also left a bitter legacy of division and rivalry between the Qays and the Yaman, which would be a constant source of strife and instability for the remainder of the Umayyad Caliphate.
Text from the Wikipedia article Battle of Marj Rahit (684), licensed CC BY-SA 4.0.