Atlas of Battles

battle, notable, medieval

Battle of Ullais

Battle of Ullais was a battle fought in April AD 633 at Mesopotamia, in what is now Iraq. It was part of the Muslim conquest of Persia, which ran from AD 633 to AD 654. The recorded result: Rashidun victory. Recorded strength: 18,000 against 70,000 (Arab estimates); 30,000 (modern estimation).

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Battle of Ullais
Mohammad adil at English Wikipedia, CC BY-SA 3.0, via Wikimedia Commons.
FoughtApril AD 633
WhereMesopotamia, Iraq31.618N, 44.570E
OutcomeRashidun victory
BelligerentsRashidun CaliphateagainstSasanian Empire; Arab allies
Casualties and losses~2,000and70,000 killed (Primary Arab sources)
Part ofMuslim conquest of PersiaAD 633 to AD 654

Where it sits in the Muslim conquest of Persia

Battle of al-Anbar, AD 633Battle of Ayn al-Tamr, AD 633Battle of Husayd, AD 633Battle of the Al Hira Canal, AD 633Battle of Chains, AD 633Battle of River, AD 633Battle of Ullais, AD 633Battle of Hira, AD 633Battle of Walaja, AD 633Battle of Muzayyah, AD 633Battle of Zumail, AD 633Battle of Saniyy, AD 633Battle of Firaz, AD 634Battle of Namaraq, AD 634Battle of Babylon, AD 634Battle of the Bridge, AD 634Battle of Burs, AD 636Battle of Babylon, AD 636Battle of al-Qadisiyyah, AD 636Siege of Ctesiphon, AD 637Battle of Jalula, AD 637Battle of Nahāvand, AD 642Battle of Spahan, AD 642Battle of Bishapur, AD 643Battle of Ray, AD 651Battle of Ray, 1224AD 6331224Battle of Ullais, AD 633
26 placed engagements of the Muslim conquest of Persia in time order; taller ticks are more widely documented. Each tick is a link.

Record

DateApril AD 633 (month precision)
PlaceMesopotamia, Iraq
31.618N, 44.570E
KindBattle, medieval
Strength18,00070,000 (Arab estimates); 30,000 (modern estimation)
Casualties and losses~2,00070,000 killed (Primary Arab sources)
Commanders
Battle of UllaisBattle of UllaisBattle of al-QadisiyyahBattle of NahāvandBattle of Dayr al-JamajimBattle of BursAlid revolt of 762–763Battle of al-QadisiyyahBattle of NahāvandBattle of Dayr al-JamajimBattle of BursAlid revolt of 762–763KarbalaAn NasiriyahAl KutAs SamawahAd DiwaniyahAl Musayyib100 km31.618N, 44.570E
The recorded site, with the nearest other engagements in the atlas. Present-day coastlines, rivers and borders; towns from Natural Earth.

Nearest engagements

In the same war

Elsewhere in AD 633

Battle of Ullais is one of 203 engagements of the 7th century in the atlas and one of 206 in present-day Iraq.

Sources

Identity, coordinates, dates and the war from Wikidata Q2542813, released under CC0. Result, belligerents, commanders, strength and casualties from the infobox of the English Wikipedia article Battle of Ullais, revision 1380198746, read 2026-11-14, licensed CC BY-SA 4.0; the article's text is not reproduced here. Present-day country and state from Natural Earth. Dates before 1582 follow the Julian calendar as recorded.