I don't know if this will help but maybe because no rights of citizenship were extended to African Americans and any successes they achieved was only permitted within a circumstated area.....Hope that helps
Answer:
John Foster Dulles was an international lawyer and US Secretary of State and was known for his strong stance against communism all over the world.
The major factor was false instinct of threat.He concluded there was a threat where there was none. If we had removed the troops immediately at the end of World War I , the so called threat would have disappeared.
The US and Britain formed an alliance and attacked Russia towards the end of World War I .They thought the revolutionary Bolsheviks would be too disorganized to accomplish a successful military regime and Russia could be split between them.
