So, the power seems to be with the citizens - they are the ones who make the decision whom to elect.
So the general system is democracy - the power is with the people.
However, the people don't make their decisions directly, but they choose some others to represent them - this is called representative democracy.
Both the Arms Race and the Space Race were<span> competitions between the Soviet Union and the United States, two Cold War rivals aiming </span>for supremacy in both <span>nuclear warfare (Arms Race) and </span><span>spaceflight capability (Space Race).
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