Answer: A historian studies each of the major world powers between the years 100 BCE and 100 CE
Explanation: your Brain
The Iraq War did not end quickly because the U.S. Government specifically the State and Defense Departments did not have a clear exit strategy. Following civil unrest in Iraq as well as increasing attacks on U.S. soldiers and the newly formed Iraqi Government the U.S. Government was unable to withdraw quickly and suffered large casualties and expended hundreds of billions of dollars in resources.
