Which led to an increase in Cold War tensions between the US and the USSR in 1983?

Arms-control negotiations broke down in 1983, increasing mistrust and tension between the United States and the Soviet Union. The Soviet Union left the INF negotiations that year after the United States began deploying missiles in Europe. The INF Treaty was signed later, in 1987; the Los Angeles Olympics boycott occurred in 1984, and a new Soviet Communist Party chairman took office in 1985.

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