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The action that has come to symbolize the end of the Cold War is 3. tearing down the Berlin Wall. The Wall had been formed by the Soviet Union to separate East Berlin (Soviet-controlled) from West Berlin (Western-controlled). Its fall allowed Berliners (and Germans) from the Eastern half finally make their way to the Western half.
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Actually, there are three major types of interest groups. Animal rights groups such as People for the Ethical Treatment of Animals(PETA) and environmental interest groups such as greenpeace usually organize as public-interest groups.
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