In ancient mesopotamia,
kings also acted as

What did the king of Mesopotamia do?

War and conquest were considered to be the divine mission of the ancient Mesopotamian kings, whose duty it was to allocate more resources and people into their domain. They believed that in order to protect themselves and their kingdoms they would need to expand and conquer areas of perceived threat

the church governed the society after the empire fell.   constantine took charge of rome and ended the confusion which had over religion and made christianity as the only religion and that started ruling the roman empire. he also divided the empire into two and fortified the eastern part.   he ruled the eastern part.

it was justfied as english were being brutal to the colonist and they needed to be stopped therfor causing a war but the moral over that is yes it was justifed