Final answer:
Ronald Reagan's foreign policy of 'peace through strength' comprised increasing defense spending, negotiating the INF Treaty for nuclear disarmament, and supporting anti-Communist forces globally, reflecting a blend of military readiness and diplomatic engagements.
Step-by-step explanation:
President Ronald Reagan's foreign policy was characterized by the principle of "peace through strength". This was evident through the concerted efforts of his administration to increase defense spending by 35 percent while also looking to foster better relationships with the prominent adversary of the time, the Soviet Union. Highlighting his commitment to peace through strength are actions such as negotiations with Soviet leader Mikhail Gorbachev resulting in the landmark Intermediate-Range Nuclear Forces (INF) Treaty, which brought about the elimination of a class of nuclear weapons. Moreover, Reagan's doctrine involved supporting anti-Communist insurgencies worldwide, showcasing a strategic approach to counter-communism indirectly rather than direct military conflict, which reflected his determination to both reinforce America's military capabilities and seek diplomatic routes to international peace and stability.