The Papers of John F. Kennedy, Presidential Papers, National Security Files, Meetings and Memoranda Series, National Security Action Memoranda, National Security Action Memorandum Number 70. John F. Kennedy Presidential Library and Museum, Boston, Massachusetts
National Security Action Memorandum Number 70: Re: Berlin Situation; Requesting a report on how we are progressing in obtaining commitments from our NATO allies to increase their military forces, August 15, 1961