I believe it is the last option... "Its political system cannot be easily changed.
Answer:
A short thrust into Union territory would not be enough; a protracted stay would be the key to Confederate success. Lee hoped to keep his army on United States soil through much of the autumn, not with the intention of capturing and holding territory but with an eye toward accomplishing several goals before returning.
Explanation:
The term Iron Curtain refers to "<span>C. the political separation of Western and Eastern Europe," since this phrase was coined by Winston Churchill during the Cold War--in which communism was in conflict with capitalism. </span>
