HistoryData
war635

Battle between Rashidun army and Byzantine army during the Muslim conquest of Syria

January 26, 0635

A Rashidun victory on 23 January 635 that eliminated a Byzantine blocking force and opened the road to Damascus during the Muslim conquest of Syria.

Quick Facts

Year
635
Category
war

Key Facts

Date
23 January 635
Byzantine commander at Damascus
Thomas, son-in-law of Emperor Heraclius
Muslim commander
Khalid ibn al-Walid
Notable combatant
Umm Hakim bint al-Harith ibn Hisham killed 7 Byzantine soldiers
Preceding battle
Battle of Yaqusa, mid-August 634, near Lake Tiberias

By the Numbers

23
Date
7
Notable combatant
634
Preceding battle

Location

Map of Marj al-Saffar, SyriaMap of Marj al-Saffar, SyriaMarj al-Saffar, Syria

Cause → Event → Consequence

Cause

Thomas, the Byzantine commander at Damascus and son-in-law of Emperor Heraclius, received intelligence of Khalid ibn al-Walid's march on Damascus and dispatched field armies to delay or halt the Muslim advance while he strengthened the city's defences and requested reinforcements from Heraclius, then at Emesa.

Event

On 23 January 635, a Byzantine blocking army sent by Thomas to impede Khalid ibn al-Walid's advance met the Rashidun force at Marj al-Saffar. The Rashidun army defeated the Byzantines; Muslim heroine Umm Hakim bint al-Harith ibn Hisham reportedly participated and slew seven Byzantine soldiers during the engagement.

Consequence

The defeat of the Byzantine blocking force at Marj al-Saffar cleared the path to Damascus for the Rashidun army, following an earlier Byzantine defeat at the Battle of Yaqusa, leaving Thomas reliant on the city's fortifications and whatever reinforcements Heraclius could dispatch to resist the Muslim advance.

Belligerents & Mobilization Analysis

Side A

1 belligerent

Rashidun Caliphate
Key Commanders

Khalid ibn al-Walid.

Side B

1 belligerent

Byzantine Empire
Key Commanders

Thomas (son-in-law of Heraclius).

Outcome
Rashidun victory; Byzantine blocking force defeated, road to Damascus opened

Timeline Context

Timeline around 635635632633634636637638Arab–Byzantine battle fought in January 635 ADbattle-of-marj-al-saffar-635