It was the backbone movement around which the Arab groups that sowed the seeds of Arabism and Islam in the Nile Valley Sudan coalesced. These Arab alliances, formed in Egypt, remained as they were in their alliances after their migration to Sudan, always preserving their form and organization as they were. This is because the groups that were able to migrate to Sudan during a period of peace and tranquility did not suffer the harshness of battles as others had before. Nor were there conditions that necessitated their flight to new refuges. Thus, these groups continued to preserve their organization in Sudan for a period of time as it was in Egypt. Thus, these people formed stable, settled groups in the land of Meroë and in the land of metal in the land of the Beja from the beginning of the phase or a little before it, because no new factors of dispersion and fragmentation affected them. Similarly, the Arab tribes could not resist the Turkish presence in Egypt since the time of Caliph Al-Mustansir, who withheld their stipends. Thus, they turned their faces towards mass migration to Sudan, fleeing in every possible way until they were able to reach the land of Sudan. They were able to reach the land of Sudan in large waves, and then they dispersed throughout the vast regions of Sudan and merged with their Arab brethren. However, these alliances were not as well-organized, cohesive, and cooperative as they were in Egypt. This is because the dense Arab groups migrating to Sudan encountered many natural and social obstacles, which often forced them to disperse in many and varied regions of the vast lands of Sudan. Perhaps the Arab migration movement from the northern gate to Sudan drew its strength and vitality from the current of Arabism flowing from its abundant springs in Egypt, a current whose strength varied according to what it faced.