I believe it was because they wanted to control the new world :)
The Soviets and United States felt powerful, and when a country feels it’s militaristic powers are high they get violent as shown in WW1. They decided to try to prove their dominance by the soviets attacking Iran. Since America backed Iran it could also be the start to America’s morale obligation to staying there to the present day.
Answer:
Indian society was divided into a rigid class system. This sentence is an example of social structure.
The nickname for U.S. soldiers in WW1 was known as "doughboys". There are many explanations for the nickname for the soldiers but the most common was that their uniforms would be coated with dust, so that they looked like they were made out of dough, or perhaps of adobe.