The iron curtain was like a curtain. It separated parts of Europe and was hard to escape the communism.
Passed in 1830, authorized Andrew Jackson to negotiate land-exchange treaties with tribes living east of the Mississippi (targeted Georgia). The treaties enacted under this act's provisions paved the way for the reluctant—and often forcible—emigration of tens of thousands of American Indians to the West.<span>Nullification Crisis</span>
If i remember correctly than the answer would be a... though the soviet union did control the local communists in many countries