Which president is noted for efforts to nullify the Soviet nuclear arsenal?

The choice identifying Ronald Reagan as the president noted for efforts to nullify the Soviet nuclear arsenal is grounded in significant historical actions and policies during his administration in the 1980s. Reagan was an advocate for nuclear disarmament, which was a cornerstone of his foreign policy, particularly in the context of the Cold War and the escalating arms race with the Soviet Union.

One of Reagan's most notable initiatives was the Strategic Defense Initiative (SDI), which aimed to develop a missile defense system that would protect the United States from nuclear missile attacks. Additionally, he engaged in a series of arms reduction negotiations, which eventually led to the Intermediate-Range Nuclear Forces Treaty (INF) in 1987. This treaty resulted in the elimination of an entire class of nuclear weapons, marking a significant step toward reducing the overall nuclear threat posed by both superpowers.

In contrast, while the other presidents mentioned had their respective foreign policy initiatives, they did not focus as prominently or successfully on nuclear disarmament in the same way as Reagan. Richard Nixon is known for the policy of détente and the Strategic Arms Limitation Talks, which were foundational but did not lead to the same level of reduction in arsenals as seen later under Reagan. Gerald Ford continued Nixon's policies but