Answer :
Final answer:
President Reagan challenged the Soviet Union through military strategies and negotiations, while Gorbachev's reforms contributed to the Soviet Union's collapse and the end of the Cold War in a global context.
Explanation:
President Reagan challenged the Soviet Union by increasing military spending, supporting anti-Soviet insurgencies, and engaging in negotiations with Soviet leader Mikhail Gorbachev. Reagan's strategy focused on 'peace through strength' and included efforts to improve relations while also standing firm against the Soviet Union.
Gorbachev's implementation of 'perestroika' and 'glasnost' aimed at modernizing the Soviet system by restructuring the economy and increasing political openness. These reforms led to the unraveling of the Soviet control over Eastern Europe and eventually contributed to the collapse of the Soviet Union.
Cold War tensions ended as the Soviet Union disintegrated, eastern European countries gained independence, and democratic movements emerged globally. The end of the Cold War was influenced by grassroots movements, peaceful revolutions, and the interactions between global leaders like Reagan and Gorbachev.
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