Describe the relationship between the united states and the middle east in the last 40 years

United States foreign policy in the Middle East has its roots as early as the Barbary Wars in the first years of the U.S.'s existence, but became much more expansive after World War II. American policy during the Cold War tried to prevent Soviet Union influence by supporting anti-communist regimes and backing Israel against Soviet-sponsored Arab countries. The U.S. also came to replace the United Kingdom as the main security patron of the Persian Gulf states in the 1960s and 1970s, working to ensure a stable flow of Gulf oil.[1] Since the 9/11 attacks of 2001, U.S. policy has included an emphasis on counter-terrorism. The U.S. has diplomatic relations with all countries in the Middle East except for Iran, whose 1979 revolution brought to power a staunchly anti-American regime that's one way it can be described.

the correct answer is b

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answer:

it caused mass african migration, african populations to grow, african empires to topple, and racism against slaves to emerge.