George Pratt Shultz, an architect of American foreign policy in the 1980s, who served three Republican presidents and helped bring about the end of the Cold War, died at the age of 100 on Feb. 7 (Singapore time). Shultz is perhaps best known as President Ronald Reagan's Secretary of State, helping to strengthen relations after rising tensions with the Soviet Union. After continuously meeting with his Soviet counterpart, the U.S. and the Soviet Union agreed upon a significant nuclear arms treaty, the Intermediate-Range Nuclear Forces Treaty in 1988. It banned various types of missiles, leading the two powers to shrink their arsenals. The treaty remained in force until it was scrapped in 2019 by President Donald Trump.