260. National Security Council Decision Memorandum 571


  • The Secretary of State
  • The Secretary of Defense
  • The Attorney General
  • The Director of Central Intelligence


  • Actions to Protect U.S. Forces in South Vietnam

Based on the National Security Council meeting of April 26, 1970,2 I direct that the following steps be taken to protect U.S. forces operating in South Vietnam:

  • —Authorization for the conduct of ground operations by U.S. forces or by US/GVN forces into identified North Vietnamese/Viet Cong sanctuaries in Cambodia up to a depth of 30 kilometers. With the exception of the operation against Base Area 352/353, U.S. or combined US/ARVN operations against specific base areas will be submitted to me for approval on a case-by-case basis.
  • —Authorization for the provision of U.S. tactical air/helicopter and artillery up to a depth of 30 kilometers in all base areas north of and including 352/353.

The Washington Special Actions Group is designated as the implementing authority for these steps.

Richard Nixon
  1. Source: National Archives, Nixon Presidential Materials, NSC Files, NSC Institutional Files (H-Files), Box H–073, WSAG Meeting, Cambodia, 4/27/70. Top Secret; Sensitive; Principals Only. A copy was sent to Wheeler.
  2. See Document 259 and footnote 2 thereto.