The publication Foreign Relations of the United States constitutes the official record of the foreign policy of the United States. The volumes in the series include, subject to necessary security considerations, all documents needed to give a comprehensive record of the major foreign policy decisions of the United States together with appropriate materials concerning the facts which contributed to the formulation of policies. Documents in the files of the Department of State are supplemented by papers from other Government agencies involved in the formulation of foreign policy.

The basic documentary diplomatic record printed in the volumes of the series Foreign Relations of the United States is edited by the Office of the Historian, Bureau of Public Affairs, Department of State. The editing is guided by the principles of historical objectivity and in accordance with the following official guidance first promulgated by Secretary of State Frank B. Kellogg on March 26, 1925.

There may be no alteration of the text, no deletions without indicating where in the text the deletion is made, and no omission of facts which were of major importance in reaching a decision. Nothing may be omitted for the purpose of concealing or glossing over what might be regarded by some as a defect of policy. However, certain omissions of documents are permissible for the following reasons:

To avoid publication of matters which would tend to impede current diplomatic negotiations or other business.
To condense the record and avoid repetition of needless details.
To preserve the confidence reposed in the Department by individuals and by foreign governments.
To avoid giving needless offense to other nationalities or individuals.
To eliminate personal opinions presented in despatches and not acted upon by the Department. To this consideration there is one qualification—in connection with major decisions it is desirable, where possible, to show the alternative presented to the Department before the decision was made.

Documents selected for publication in the Foreign Relations volumes are referred to the Department of State Classification/Declassification Center for declassification clearance. The Center reviews [Page IV] the documents, makes declassification decisions, and obtains the clearance of geographic and functional bureaus of the Department of State, as well as of other appropriate agencies of the government. The Center, in coordination with the geographic bureaus of the Department of State, conducts communications with foreign governments regarding documents or information of those governments proposed for inclusion in Foreign Relations volumes.

William Z. Slany supervised the preparation of this volume. He was assisted in the initial planning and preparation by John A. Bernbaum and in the later stages by Charles S. Sampson. David M. Baehler prepared the compilations on United States policy toward Scandinavia, Iceland, Portugal, and Spain; John A. Bernbaum those on the economic and political integration of Western Europe, the agricultural integration of Western Europe, the chiefs of mission meetings, and France. Ronald D. Landa compiled the sections on Italy and the Vatican; Lisle A. Rose that on the Mutual Security Program for Europe. Charles S. Sampson prepared the compilation on the United Kingdom and David H. Stauffer those on Ireland and Canada.

Vicki E. Futscher of the Documentary Editing Section performed technical editing under the supervision of Rita M. Baker in the Publishing Services Division (Paul M. Washington, Chief). The Twin Oaks Indexing Collective prepared the index.

William Z. Slany
The Historian Bureau of Public Affairs