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Why did Sumerian cities fight each other? What did the Sumerians do to protect their cities? 


Sorry I was going to only put out one question.Answer one if you want to.

Respuesta :

They fought over water use. They built big walls and moats around their city's.
   
                                                                                                                    - Huskykk
  
they fought over water and land mostly and the built walls to divide there land