Caspar Weinberger was the Secretary of Defense from 1981-1987. In the interview he discusses the Reagan Administrations national security policy. He explains the importance of having a strong offensive deterrent, which the Reagan Administration accomplished by rebuilding the triad of nuclear forces when they came into office. He also explains the research and development of the Strategic Defense Initiative (SDI), which he called the ultimate deterrent. He defends SDI from criticism and explains how it will protect national security. He asserts that the Reagan Administration has made many contributions to U.S. national security, including SDI, and a military build up that resulted in the Soviet Union taking the Intermediate Nuclear Forces Treaty (INF) seriously, thus lowering the level of nuclear forces required to maintain deterrence.