Section 1
Constant Fighting Allows Conquerors to Build Empires
For hundreds of years, the Sumerian city-states fought each other for control of land and resources. This constant conflict, like the brutal war between Umma and Lagash, weakened them all. This ongoing instability made it possible for a strong outside leader to conquer the entire region. The city-states' inability to unite against a common enemy directly led to them being taken over and becoming part of the world's first empires.