Answer:
Alexander The Great believed that his task as a ruler was not only to conquer certain areas, but also to spread new ideas, culture and to create a blend of different influences that would led to the cultural unification of his Empire. On the territories he had conquered Alexander was spreading the Greek ideas, culture and tradition, but also wanted to incorporate elements of the regions he had conquered.
Alexander managed to conquer Persian Empire, spreading his country to India. When he entered in Egypt he was received as a pharaoh. Newly conquered areas accepted Greek culture, they even started using common language. This period was known as Hellenism.