36°11′53″N 37°09′48″E / 36.198133°N 37.16328°E
| Siege of Aleppo. | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Part of the Muslim conquest of Syria (Arab–Byzantine wars) | |||||||||
&sq=&lang=&file=File:Citadel_of_Aleppo,_Passage,_Aleppo,_Syria.jpg) Aleppo citadel | |||||||||
| |||||||||
| Belligerents | |||||||||
| Rashidun Caliphate |
Byzantine Empire Ghassanids | ||||||||
| Commanders and leaders | |||||||||
|
Khalid ibn al-Walid Abu Ubaidah ibn al-Jarrah | Joachim | ||||||||
| Strength | |||||||||
| 17,000 | Unknown | ||||||||
| Casualties and losses | |||||||||
| Minimal | Unknown but more than Muslims | ||||||||
The siege of Aleppo, the Byzantine stronghold and one of few remaining Byzantine castles in the northern Levant after the decisive Battle of Yarmouk, was laid between August and October 637.