They provide a channel in which people can communicate directly to their congressmen/ back them to pass legislation on your behalf.
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This arms race is often cited as one of the causes of World War I. The United States' use of nuclear weapons to end World War II led to a determined and soon successful effort by the Soviet Union to acquire such weapons, followed by a long-running nuclear arms race between the two superpowers.
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Babor unions fought for better wages, reasonable hours and safer working conditions. The labor movement led efforts to stop child labor, give health benefits and provide aid to workers who were injured or retired.
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