Presidents have issued such directives under various names.
Truman and Eisenhower administrations National security directives were quite different in the early period of the
Cold War. A 1988
General Accounting Office (GAO) investigation into national security directives left out the directives from the Truman and Eisenhower years because "they were not structured in a way to allow categorization." The study nevertheless made note of two types of directives. The first was "policy papers" which
could contain policy recommendations, in which case the president might decide to approve the policy by writing his signature. A famous example of such a policy paper is
NSC 68. GAO also noted another type of directive called "NSC Actions", which were "numbered records of decisions that were reached at NSC meetings.
Kennedy and Johnson administrations The
Kennedy administration which took office in 1961 reorganized the NSC and began issuing National Security Action Memoranda (NSAMs). Many NSAMs were signed in Kennedy's name by
National Security Advisor McGeorge Bundy, although Kennedy sometimes signed them personally.
Lyndon B. Johnson continued issuing NSAMs where Kennedy left off, although issuing only 99 directives as compared to Kennedy's 273.
Reagan administration A 1986 National Security Decision Directive gave the
State Department authority and responsibility to coordinate responses to international terrorism across government agencies including the
CIA,
DoD, and
FBI. This was intended to reduce interagency conflicts which were observed in the response to the
hijacking of the Achille Lauro cruise ship. The State Department's
Bureau of Counterterrorism continues this coordinating function.
Second Trump administration Under the Trump administration, National Security Directives were renamed "National Security Presidential Memoranda", or NSPMs. On September 25, 2025, Trump issued
National Security Presidential Memorandum/NSPM-7, titled "Countering Domestic Terrorism and Organized Political Violence". == Homeland Security Presidential Directive ==