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- Cold War--Influence[remove]6
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- United States--Politics and government--20th century6
- East-West trade5
- Soviet Union--Commerce--United States5
- United States--Commerce--Soviet Union5
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- Vietnam War, 1961-19755
- Foreign trade regulation--United States4
- China--Commerce--United States3
- United States--Commerce--China3
- Bolivia--Commerce--United States1
- Colombia--Commerce--United States1
- Communists--Public opinion1
- Cuba--Commerce--United States1
- Social security--Law and legislation--United States1
- United States--Commerce--Bolivia1
- United States--Commerce--Colombia1