Saudi Arabia, Iran, Iraq, Kuwait
President Obama in Cuba of March 2016 ended America's 55 year long Cold War with Cuba.
President Obama in Iran had negotiated terms that paused Iran's quest to develop nuclear strike capability although many critics disagreed with negotiating with Iran.
Answer: The class system
Explanation:
Stratification gives the ranks of social status of each families in the society.
The class system is global method that put group of individuals who have a definite status within society which describes how they relate to other groups
These status are not fixed they can change anytime because they are social classes that depends on the individuals status at that particular moment .
In the above text this female child was born in the poor family and had ranked in the lower rank but has however moved up into the higher rank as she gets richer and richer.
Depends on who the war is with, however universal concerns would be logistics, monetary backing and manpower to fight the war.