Battle of Ullais (Rashidun Caliphate vs Sasanian Empire & Arab allies) took place in 633 AD during Muslim conquest of Persia.
Wikipedia article on Battle of Ullais · Wikidata entry
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Battle of Ullais took place in 633 AD. Rashidun Caliphate vs Sasanian Empire & Arab allies. Approx. ~2,00070,000 killed (Primary Arab sources)| casualties. Part of Muslim conquest of Persia. Explore the interactive map and full Wikipedia details on WarAtlas. Please enable JavaScript to use the full app.