The "" spread their culture by conquering weak empires on the western edge of the fertile crescent.

The correct answer is - Babylonians.

The Babylonians, even though based between and in close proximity of the Tigris and Euphrates rivers, still had the hunger for spreading their culture and conquering new territories, so they played tactically and targeted small and weak kingdoms in the western part of the ''Fertile Crescent'' which were not able to oppose them, so they conquered them with ease and spread their culture in this territories. Some of the products of spreading and influence of the Babylonian culture were the Phoenician culture and the Assyrian culture.

judicial because its legislative, executive and judicial