Answer:
The Iron Curtain specifically refers to the imaginary line dividing Europe between Soviet influence and Western influence, and symbolizes efforts by the Soviet Union to block itself and its satellite states from open contact with the West and non-Soviet-controlled areas.
Which was an important long-term result of the Civil War?
A. A feeling of American nationalism developed.
B. Industrialism increased in the South.
C. Differences between social classes declined.