The Soviet leader suddenly wanted to become friends with the United States because an alliance between China and the United States would be tough to beat.
He was a Chinese communist leader that founded People's Republic of China. He led as the chairman of the Chinese Communist Party from the establishment of the PRC in 1949.
Because Mao Zedong established diplomatic relations with the United States since the Soviet Union and China were at odds, the Soviet Union became better acquainted with America.
The Soviet Union wanted to join instead of being conquered, hence, they wanted to become better acquainted because they were scared of getting attacked.
Therefore, the Soviet leader suddenly wanted to become friends with the United States because an alliance between China and the United States would be tough to beat.
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