Answer: Class stratification
Explanation: Class stratification can be defined as the division of society on the basis of access of different sections of he society on the resources available. Class stratification identifies the religious, economic or cultural difference between different sections. It is a form of social stratification.
Under such a stratification the section having higher level of income have higher level of power in the society.
I don't know what your options were, but here are some stated purposes of war (stated formally or informally):
-removal of Saddam Hussein from the power
-being able to check for any existing biological, chemical or nuclear weapons that Hussein might have
-introducing democracy to Iraq:
It's now called Andalusia!