The Battle of Yarmouk was a major battle between the Muslim forces of the Rashidun Arab Muslim king and the Byzantine army of the Eastern Roman Empire. Bear camping Shuh duh fuh cup I hate people shirt. The battle included a series of six-day clashes in August 636 near the Yarmouk River, which is the present-day border between Syria and Jordan, southeast of the Sea of Galilee. The outcome of the battle was a complete victory of the Muslims and a permanent end to the rule of the Byzantine Empire in southern Anatolia region. The battle of Yarmouk is considered one of the most decisive battles in military history and it marked the first wave of Muslim conquest after the death of the Prophet Muhammad, which also signaled progress. fast of Muslims into Christian countries in close proximity to Christianity.