Help please The Soviet Union set up the Iron Curtain in order to -
A. Extract iron from the Ural Mountains to help support their industrial growth
B. Prevent foreign ships from delivering supplies to Soviet controlled harbors
C Serve as a buffer between the Soviet Union and its enemies
D. Training and develop future military leaders​

C.

Explanation:

The Iron Curtain served as an imaginary boundary between the Soviet Union and the West world. The term iron curtain was used by the Prime Minister Winston Chruchill in his speech and popularised thereafter.

This boundary divided the communist eastern Europe from the west. Stalin build barbed wires, ditches, and concrete walls to stop his citizen from fleeing to the Western Europe.

Therefore, the Iron Curtain served as a buffer between the Soviet Union and the West. Thus option C is correct.

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i also see that they are way better humans.

c. troops marched forward in close formation against newer, more accurate weapons