How did Reagan worsen cold war relations?

Ronald Reagan's administration worsened Cold War relations through a more aggressive stance against the Soviet Union, characterized by his labeling it as an "evil empire." His decision to increase military spending and develop the Strategic Defense Initiative (SDI) escalated tensions, as it was perceived by the Soviets as a direct threat. Additionally, Reagan’s support for anti-communist movements worldwide, including in Central America and Afghanistan, further antagonized Soviet interests, contributing to the deterioration of diplomatic relations during the early 1980s.