What were the major factors for Egyptian aggregation of Ethiopia ?

The major factors for Egyptian aggregation of Ethiopia were primarily economic and strategic. Egypt sought to gain access to Ethiopia's resources, such as gold, ivory, and slaves, as well as to expand its influence in the region. Additionally, Egypt wanted to protect its southern border from potential threats from Ethiopia, which had a long history of conflict with Egypt. Finally, Egypt sought to gain control of the Nile River, which was a major source of water and transportation for the region.