Why did sumerian cities fight each other? what did the sumerians do toprotect their cities?
sorry i was going to only put out one question. answer one if you want to.

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

France played a key role in the american revolutionary war (american war of independence; 1775–1783). motivated by the ideals of the new nation which were inspired by the french enlightenment, as well as its long-term rivalry with britain and so as to avenge their territorial losses during the french and indian war, france secretly began sending supplies to the americans in 1775.