Rashidun Siege of Alexandria
Alexandria, EgyptForces of the Rashidun Caliphate seized the major Mediterranean port of Alexandria away from the Byzantine Empire (Eastern Roman Empire) in the middle of the 7th century CE. Alexandria had been the capital of the Byzantine province of Egypt. This ended Eastern Roman maritime control and economic dominance of the Eastern Mediterranean and thus continued to shift geopolitical power further in favor of the Rashidun Caliphate.