Battle of the Bridge

BelligerentsRashidun CaliphateSasanian EmpireCommanders and leadersAbu Ubayd al-Thaqafi†
Al-Hakam al-Thaqafi †
Jabr ibn Abi Ubayd †
Al-Muthanna (WIA)Yazdegerd III
Bahman Jadhuyih
JalinusStrength 6,000–10,000 80,000
20 war elephantsCasualties and losses 6,000–7,000 killed
3,000 drowned or escaped Unknown

The Battle of the Bridge or the Battle of al-Jisr (Arabic: معركة الجسر) was fought at the bank of the Euphrates between Arab Muslims, led by Abu Ubayd al-Thaqafi, and the Persian Sasanians, led by Bahman Jaduya. It is traditionally dated to the year 634 and was the only major Sasanian victory over the invading Rashidun Caliphate army.