The Foreign Relations of the United States series presents the official documentary historical record of major foreign policy decisions and significant diplomatic activity of the United States Government. The series documents the facts and events that contributed to the formulation of policies and includes evidence of supporting and alternative views to the policy positions ultimately adopted.
The Historian of the Department of State is charged with the responsibility for the preparation of the Foreign Relations series. The staff of the Office of the Historian, Bureau of Public Affairs, plans, researches, compiles, and edits the volumes in the series. This documentary editing proceeds in full accord with the generally accepted standards of historical scholarship. Official regulations codifying specific standards for the selection and editing of documents for the series were first promulgated by Secretary of State Frank B. Kellogg on March 26, 1925. These regulations, with minor modifications, guided the series through 1991.
A new statutory charter for the preparation of the series was established by Public Law 102–138, the Foreign Relations Authorization Act, Fiscal Years 1992 and 1993, which was signed by President George Bush on October 28, 1991. Section 198 of P.L. 102–138 added a new Title IV to the Department of Stateʼs Basic Authorities Act of 1956 (22 USC 4351, et seq.).
The statute requires that the Foreign Relations series be a thorough, accurate, and reliable record of major United States foreign policy decisions and significant United States diplomatic activity. The volumes of the series should include all records needed to provide comprehensive documentation of major foreign policy decisions and actions of the United States Government. The statute also confirms the editing principles established by Secretary Kellogg: the Foreign Relations series is guided by the principles of historical objectivity and accuracy; records should not be altered or deletions made without indicating in the published text that a deletion has been made; the published record should omit no facts that were of major importance in reaching a decision; and nothing should be omitted for the purposes of concealing a defect in policy. The statute also requires that the Foreign Relations series be published not more than 30 years after the events recorded. The editor is convinced that this volume, which was compiled in 1993, meets all regulatory, statutory, and scholarly standards of selection and editing.[Page IV]
Structure and Scope of the Foreign Relations Series
This volume is part of a subseries of volumes of the Foreign Relations series that documents the most important issues in the foreign policy of the 5 years (1964–1968) of the administration of Lyndon B. Johnson. The subseries presents in 34 volumes a documentary record of major foreign policy decisions and actions of President Johnsonʼs administration. In planning and preparing the 1964–1968 subseries, the editors chose to present the official record of U.S. foreign policy with respect to Vietnam in seven volumes. Volume IV (presented here) documents U.S policy during 1966. Volumes I through III and V through VII document U.S. policy toward Vietnam during the following periods: I, 1964; II, January 1, 1965, through June 12, 1965; III, June 13, 1965, through December 31, 1965; V, 1967; and VI and VII, 1968.
These seven volumes focus on Vietnam. They do not record activities in the rest of mainland Southeast Asia except as they may relate immediately to the conduct of the war in Vietnam. U.S. relations with Laos are documented in volume XXVIII; U.S. relations with Cambodia, Thailand, Burma, and SEATO are documented in volume XXVII.
Principles of Document Selection for the Foreign Relations Series
In preparing each volume of the Foreign Relations series, the editors are guided by some general principles for the selection of documents. Each editor, in consultation with the General Editor and other senior editors, determines the particular issues and topics to be documented either in detail, in brief, or in summary.
The following general selection criteria are used in preparing volumes in the Foreign Relations series. Individual compiler-editors vary these criteria in accordance with the particular issues and the available documentation. The editors also tend to apply these selection criteria in accordance with their own interpretation of the generally accepted standards of scholarship. In selecting documentation for publication, the editors gave priority to unpublished classified records, rather than previously published records (which are accounted for in appropriate bibliographical notes).
Selection Criteria (in general order of priority):
- Major foreign affairs commitments made on behalf of the United States to other governments, including those that define or identify the principal foreign affairs interests of the United States;
- Major foreign affairs issues, commitments, negotiations, and activities, whether or not major decisions were made, and including dissenting or alternative opinions to the process ultimately adopted;
- The decisions, discussions, actions, and considerations of the President, as the official constitutionally responsible for the direction of foreign policy;
- The discussions and actions of the National Security Council, the Cabinet, and special Presidential policy groups, including the policy options brought before these bodies or their individual members;
- The policy options adopted by or considered by the Secretary of State and the most important actions taken to implement Presidential decisions or policies;
- Diplomatic negotiations and conferences, official correspondence, and other exchanges between U.S. representatives and those of other governments that demonstrate the main lines of policy implementation on major issues;
- Important elements of information that attended Presidential decisions and policy recommendations of the Secretary of State;
- Major foreign affairs decisions, negotiations, and commitments undertaken on behalf of the United States by government officials and representatives in other agencies in the foreign affairs community or other branches of government made without the involvement (or even knowledge) of the White House or the Department of State;
- The main policy lines of intelligence activities if they constituted major aspects of U.S. foreign policy toward a nation or region or if they provided key information in the formulation of major U.S. policies, including relevant National Intelligence Estimates and Special National Intelligence Estimates as may be declassified;
- The role of the Congress in the preparation and execution of particular foreign policies or foreign affairs actions;
- Economic aspects of foreign policy;
- The main policy lines of U.S. military and economic assistance as well as other types of assistance;
- The political-military recommendations, decisions, and activities of the military establishment and major regional military commands as they bear upon the formulation or execution of major U.S. foreign policies;
- Diplomatic appointments that reflect major policies or affect policy changes.
Sources for the Foreign Relations Series
The Foreign Relations statute requires that the published record in the Foreign Relations series include all records needed to provide comprehensive documentation on major U.S. foreign policy decisions and significant U.S. diplomatic activity. It further requires that government agencies, departments, and other entities of the U.S. Government engaged in foreign policy formulation, execution, or support cooperate with the Department of State Historian by providing full and complete access to records pertinent to foreign policy decisions and actions and by [Page VI]providing copies of selected records. Most but not all of the sources consulted in the preparation of this volume have been declassified and are available for review at the National Archives and Records Administration. The declassification review and opening for public review of all Department of State records no later than 30 years after the events is mandated by the Foreign Relations statute. The Department of State and other record sources used in the volume are described in detail in the section on Sources below.
Focus of Research and Principles of Selection for Foreign Relations, 1964–1968, Volume IV
The editors developed the following thematic areas of focus for research and the selection of documents for inclusion in this volume: 1) formulation of policy in Washington by the President and his advisers, the Cabinet, and other responsible officials, with particular emphasis on decisions concerning the air and the ground wars, the pacification program, peace negotiations, and relations with the Government of South Vietnam; 2) the advisory process, including recommendations from key advisers in Washington, intelligence assessments of the situation in Vietnam, and reporting and advice from U.S. officials in Saigon; 3) diplomatic efforts to initiate peace negotiations and other key diplomatic contacts; 4) efforts to make contact with officials of the National Liberation Front; 5) military planning and strategy, including pacification; 6) Executive-Congressional relationships in Washington and opposition to the Johnson administrationʼs conduct of the war; 7) the relationship between the U.S. Government and the South Vietnamese Government, including meetings of political and military leaders and the issues of political instability and constitutional government in South Vietnam; 8) the implementation in South Vietnam of major foreign policy decisions of the President and ancillary policy actions directed by the Secretary of State.
The documents are presented chronologically according to Washington time or, in the case of conferences, in the order of individual meetings. Memoranda of conversation are placed according to the time and date of the conversation, rather than the date the memorandum was drafted.
Editorial treatment of the documents published in the Foreign Relations series follows Office style guidelines, supplemented by guidance from the General Editor and the chief technical editor. The source text is reproduced as exactly as possible, including marginalia or other notations, which are described in the footnotes. Texts are transcribed and printed according to accepted conventions for the publication of historical documents in the limitations of modern typography. A heading has been supplied by the editors for each document included in the volume. [Page VII]Spelling, capitalization, and punctuation are retained as found in the source text, except that obvious typographical errors are silently corrected. Other mistakes and omissions in the source text are corrected by bracketed insertions: a correction is set in italic type; an addition in roman type. Words or phrases underlined in the source text are printed in italics. Abbreviations and contractions are preserved as found in the source text, and a list of abbreviations is included in the front matter of each volume.
Bracketed insertions are also used to indicate omitted text that deals with an unrelated subject (in roman type) or that remains classified after declassification review (in italic type). The amount of material not declassified has been noted by indicating the number of lines or pages of source text that were omitted. Entire documents withheld for declassification purposes have been accounted for and are listed by headings, source notes, and number of pages not declassified in their chronological place. The amount of material omitted from this volume because it was unrelated to the subject of the volume, however, has not been delineated. All brackets that appear in the source text are so identified by footnotes.
The first footnote to each document indicates the documentʼs source, original classification, distribution, and drafting information. This note also provides the background of important documents and policies and indicates whether the President or his major policy advisers read the document. Every effort has been made to determine if a document has been previously published, and, if so, this information has been included in the source footnote.
Editorial notes and additional annotation summarize pertinent material not printed in the volume, indicate the location of additional documentary sources, provide references to important related documents printed in other volumes, describe key events, and provide summaries of and citations to public statements that supplement and elucidate the printed documents. Information derived from memoirs and other first-hand accounts has been used when appropriate to supplement or explicate the official record.
Advisory Committee on Historical Diplomatic Documentation
The Advisory Committee on Historical Diplomatic Documentation, established under the Foreign Relations statute, reviews records, advises, and makes recommendations concerning the Foreign Relations series. The Advisory Committee monitors the overall compilation and editorial process of the series and advises on all aspects of the preparation and declassification of the series. Although the Advisory Committee does not attempt to review the contents of individual volumes in the series, it does monitor the overall process and makes recommendations on particular problems that come to its attention.
The Advisory Committee did not review this volume.[Page VIII]
The final declassification review of this volume, which was completed in 1996, resulted in the decision to withhold less than one-half of one percent of the documentation selected. No documents were withheld in their entirety. The documentation provides an accurate account of the main lines of U.S. policy toward Vietnam during 1966.
The Information Response Branch of the Office of IRM Programs and Services, Bureau of Administration, Department of State, conducted the declassification review of the documents published in this volume. The review was conducted in accordance with the standards set forth in Executive Order 12356 on National Security Information and applicable laws, which was superseded by Executive Order 12958 on April 20, 1995.
Under Executive Order 12356, information that concerns one or more of the following categories, and the disclosure of which reasonably could be expected to cause damage to the national security, requires classification:
- military plans, weapons, or operations;
- the vulnerabilities or capabilities of systems, installations, projects, or plans relating to the national security;
- foreign government information;
- intelligence activities (including special activities), or intelligence sources or methods;
- foreign relations or foreign activities of the United States;
- scientific, technological, or economic matters relating to national security;
- U.S. Government programs for safeguarding nuclear materials or facilities;
- cryptology; or
- a confidential source.
The principle guiding declassification review is to release all information, subject only to the current requirements of national security as embodied in law and regulation. Declassification decisions entailed concurrence of the appropriate geographic and functional bureaus in the Department of State, other concerned agencies of the U.S. Government, and the appropriate foreign governments regarding specific documents of those governments.
The editor of this volume, David C. Humphrey, wishes to acknowledge the assistance of many of his former colleagues at the Lyndon B. Johnson Library, in particular Regina Greenwell and Charlaine Burgess, who provided key assistance during every phase of the project. He also wishes to acknowledge the assistance of officials at the Central Intelligence Agency, in particular Scott Koch; the Department of Defense, in particular Sandra Meagher and David Phelps; the National Defense University, [Page IX]in particular Susan Lemke; and officials at other specialized repositories who assisted in the collection of documents for this volume.
David W. Mabon began the research for this volume prior to his retirement. David C. Humphrey completed the research and selected and annotated the documents for publication. Edward C. Keefer provided guidance during the project and reviewed the manuscript. David H. Herschler, David C. Geyer, Kerry E. Hite, and Donna C. Hung coordinated the declassification review. Rita M. Baker and Vicki E. Futscher did the copy and technical editing, and Barbara-Ann Bacon of the Publishing Services Division oversaw the production of the volume. Max Franke prepared the index.
Bureau of Public Affairs