A polis of ancient Greece was a a)politically independent unit that included a city and surrounding land. A polis meant the city-states which existed during ancient Greece and would stand today as what it's modern city would be called. A polis also stood as a form of identity as it would be a person's citizenship and can be used to describe a body of citizens.
Answer:
When the king needed to wage war by sea, he relied on the temporary.... the sea, commands the trade; whosever commands the trade of the world.