Final answer:
Richard Nixon improved relations with China to gain an advantage in the Cold War.
Explanation:
Richard Nixon improved relations with China as a way to gain an advantage in the Cold War. His administration sought Chinese support for America's exit from Vietnam, leading to a thaw in Sino-U.S. relations. In 1972, Nixon made a significant goodwill trip to Beijing, initiating diplomatic relations and closer ties between the two countries.
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