The Battle of Heliopolis was a pivotal confrontation during the early Muslim conquests, marking the beginning of a significant and transformative period for Egypt. Commanded by 'Amr ibn al-'As, the Muslim Arab army faced a larger Byzantine force. However, through superior tactics, strategic planning, and the element of surprise, 'Amr ibn al-'As led his troops to a resounding victory. Utilizing swift cavalry movements and effective use of terrain, the Arab soldiers secured an advantageous position that allowed them to break the Byzantine lines. The victory was not just a military success but also had profound implications for the Muslim expansion into Egypt and North Africa.

After the defeat at Heliopolis, the Byzantine control over Egypt weakened considerably. The region, which had been a vital part of the Byzantine Empire, became increasingly vulnerable to further Arab incursions. 'Amr ibn al-'As's success at Heliopolis not only demonstrated the effectiveness of the Muslim military tactics of the time but also marked a shift in the balance of power in the region. Following this defeat, the Byzantines struggled to reclaim control, leading to further engagements that would ultimately contribute to the establishment of Islamic rule in Egypt. Thus, the battle was a key moment in the broader conflict between the expanding Muslim forces and the waning Byzantine Empire, shaping the future of the region.