The Battle of the Cross was a significant conflict that took place in 636 AD between the Byzantine Empire and the Muslim forces led by Khalid ibn al-Walid. This battle occurred near the city of Yarmouk in present-day Jordan. It marked a crucial turning point in the expansion of Islamic territory and the decline of Byzantine influence in the region. The battle was characterized by strategic maneuvers and fierce fighting, ultimately resulting in a decisive victory for the Muslim forces. This victory allowed the Muslims to gain control over much of the Levant, paving the way for further conquests and the establishment of the Umayyad Caliphate.