How did the United States work to enforce containment in Europe? A. Forming the NATO alliance to discourage Soviet expansion
B. Forming organizations in Eastern Europe that funded anti-
communist rebellions
C. Forming the Warsaw Pact to prevent the spread of communism
D. Forming the Iron Curtain alliance to keep the Soviet Union out of
Eastern Europe

as general terms,  indian territory,  the indian territories, or  indian country  describe an evolving land area set aside by the  united states government  for the relocation of  native americans  who held  aboriginal title  to their land. in general, the tribes ceded land they occupied in exchange for  land grants  in 1803. the concept of an indian territory was an outcome of the 18th- and 19th-century policy of  indian removal. after the  civil war(1861–1865), the policy of the government was one of  assimilation.