The Battle of Sanita-al-Uqab (Arabic: معركة ثنية العقاب) was fought in 634 between the Rashidun Caliphate led by Khalid ibn al-Walid against Byzantine empire. the Caliphate forces intending to isolate the city of Damascus from the rest of the region. Khalid placed detachments in the south on the road to Palestine and in the north on the Damascus-Emesa route, and several other smaller detachments on routes towards Damascus. Heraclius's reinforcements were intercepted and routed at the al Uqab Pass.
References
Battle of Sanita-al-Uqab Wikipedia(Text) CC BY-SA