Considered "[o]ne of the most famous battles of pre-Islamic Arabia", it was named after Halima, a Ghassanid princess who assisted the warriors of her tribe in the battle. The exact identity of the Ghassanid king who fought the battle is not certain, but he is commonly identified with al-Harith ibn Jabalah, a major Byzantine client ruler who waged frequent conflicts with the Lakhmids under their respective king al-Mundhir III ibn al-Nu'man. The Lakhmids in turn were clients of the Sassanid Persians, and the perennial tribal warfare between them and the Ghassanids was combined into the larger rivalry between Byzantium and Persia, with the Arabs fighting as auxiliaries to the two great empires.
Yawm Halima is identified with a battle fought in June 554 near Chalcis, where the Ghassanids confronted one of Mundhir's raids. The Lakhmids were defeated and their king Mundhir fell on the field, but Harith also lost his eldest son Jabalah.
- Greatrex, Geoffrey; Lieu, Samuel N. C. (2002). The Roman Eastern Frontier and the Persian Wars (Part II, 363–630 AD). London: Routledge. ISBN 0-415-14687-9.
- Martindale, John Robert; Jones, Arnold Hugh Martin; Morris, J., eds. (1992). The Prosopography of the Later Roman Empire, Volume III: A.D. 527–641. Cambridge: Cambridge University Press. ISBN 978-0-521-20160-5.
- Retsö, Jan (2003). The Arabs in Antiquity: Their History from the Assyrians to the Umayyads. Routledge. ISBN 978-1136872891.
- Shahîd, Irfan (2009). Byzantium and the Arabs in the Sixth Century, Volume II, Part 2: Economic, Social and Cultural History. Washington, DC: Dumbarton Oaks Research library and Collection. ISBN 978-0-88402-347-0.