The Nubians of Kerma grew deathly. Their kingdom developed a close relationship with Egypt in the north. It made Kerma an important trade link between Egypt and the tropical areas of Southern Africa. Egyptians got cattle, gold, incense, ivory, giraffes, leopards and enslaved people. They also hired Nubians to serve in their armies because of the skills in warfare. Karma's artisans made fine pottery, jewelry and metal goods.