Answer:
Cause they big bois...Lol No Empires grow for different reasons. The Persian Empire of the Achaemenids was built largely through military conquest. The Maurya Empire in India used a combination of political sabotage, religious conversion, and military conquest to expand its rule. Empires expand their territories by different ways. The most obvious one is with war, where the stronger one usually wins. But there are also other ways. Earlier when empires were ruled by kings and their heirs after them
Step-by-step explanation:
i read books, I ask google, I did research