National Security Action Memorandum Number 230: Assignmentof Highest National Priority to Project PAL (Permissive Links for Nuclear Weapons in NATO), March 22, 1963
03/22/1963
The Papers of John F. Kennedy, Presidential Papers, National Security Files, Meetings and Memoranda Series, National Security Action Memoranda, National Security Action Memorandum Number 230. John F. Kennedy Presidential Library and Museum, Boston, Massachusetts
Public domain