Answer:
In 1500 BC, Egypt conquered all of Nubia, forging a great empire that stretched all the way from the Euphrates in Syria to the 5th Cataract of the Nile. For over 500 years, Egypt's wealth made the Pharaohs of the New Kingdom, like Tutankhamun, the most powerful rulers on the face of the earth. Egyptians did, however, conquer Nubian territory at various times. Nubians conquered Egypt in the 25th Dynasty. ... 2040-1640 BCE), Egypt began expanding into Nubian territory in order to control trade routes, and to build a series of forts along the Nile.