The answer is: to keep the population isolated from freer societies.
Answer:
the earth is huge and round
Explanation:
There are usually 5 biomes in a ecosystem <span />
The main U.S. goal in the Southeast Asia War was to protect South Vietnam -- initially from a local communist insurgency and later from conquest by communist North Vietnam. The U.S. also hoped to prevent the spread of communism to other nearby countries. ... The U.S. gave France military assistance in fighting insurgents
the major ethnic and language groups in the country