Multiple proxy wars stood in for actual conflict between the United States and the Soviet Union. The Korean War, Vietnam War, and a number of other armed conflicts, during which both sides either funded one side of the war or fought directly against a communist or capitalist force, are all considered Cold War proxies.
While I agree with the explanation, I believe the answer is “C.” The US promoted its interests by supporting those countries threatened by Soviet expansion, never having to directly engage with the Soviets. This was part of the Truman Doctrine that sought to contain communism by supporting insurgent movements against the Soviets.
In the United States and in many other countries, citizens have to register to vote "To <span>make sure people vote only once," since otherwise it would be very hard to track who has already voted. </span>
