What did the declassified documents reveal?

This is a declassified Central Intelligence Agency Current Intelligence Staff Study on North Vietnam and Sino‑Soviet Relations, prepared March fourth, nineteen sixty‑two. The record appears in the CIA’s ESAU series as study eighteen sixty‑two and is notable for its early analysis of how the Vietnamese communist movement balanced Chinese and Soviet influence during the first decade of the Cold War. The source is archived at archive dot org under the Black Vault collection. The study was released to the public in May two thousand seven as part of a Freedom of Information Act request. The declassification authority was the CIA’s Office of Information Management, which cleared the document for public distribution after review under the agency’s classification guidelines. Approved for release, date May two thousand seven. Confidential. OCI number one zero zero two slash six two. Copy number one thirty three. Current Intelligence Staff Study North Vietnam and Sino‑Soviet Relations (Reference Title: ESAU eighteen sixty‑two). Office of Current Intelligence, Central Intelligence Agency. This is a working paper, the third in a series of ESAU studies of components of the world communist movement in the context of the Sino‑Soviet relationship. ESAU fifteen discussed North Korea, and ESAU sixteen discussed the Indian party. The paper was prepared by Philip L. Bridgham, a member of the Sino‑Soviet Studies Group in the period nineteen fifty‑nine to nineteen sixty‑one, before he joined the Department of Defense late in nineteen sixty‑one. In preparing the first draft before he left the SSSG, and in preparing the final version of the paper in recent months, Mr. Bridgham had the benefit of counsel from the China and Asian Satellites on Bloc Area of OCI. The Sino‑Soviet Studies Group would welcome additional comment on this paper, addressed either to Mr. Bridgham at the Department of Defense or to the coordinator of the SSSG. Summary The North Vietnamese Communists have stood in several different relationships to the Soviets and the Chinese since the Communist triumph in China in nineteen forty‑nine, but never in the relationship of a satellite of either. Chinese influence has always been the stronger, but at some periods, such as the present, not much stronger. In the war years of nineteen forty‑six to nineteen fifty‑four, Chinese influence was clearly predominant with the Viet Minh. The North Vietnamese concurred in the Chinese claim to leadership of the revolution in Southeast Asia; they took “Mao’s theory” together with Marxism‑Leninism as their source of guidance; they adopted the Chinese revolutionary strategy of a broad united front against imperialism and the peasant armies operating from rural bases; they looked to the Chinese model for their party, military and mass organizations, and for legislation; they were dependent on Chinese aid for their military victories; and they permitted the Chinese to play the principal role for the Communist side at Geneva…

Why was this case declassified?

This material entered the public record through the U.S. declassification and Freedom of Information Act (FOIA) process. The originating source document is linked on this page so the citation chain is auditable.

Central Intelligence Agency Current Intelligence Staff Study On North Vietnam

◆ BLUF — The short version

This is a declassified Central Intelligence Agency Current Intelligence Staff Study on North Vietnam and Sino‑Soviet Relations, prepared March fourth, nineteen sixty‑two. The record appears in the CIA’s ESAU series as study eighteen sixty‑two and is notable for its early analysis of how the Vietnamese communist movement balanced Chinese and Soviet influence during the first decade of the Cold War.

Date: SEP 14 · 2026
Release: Declassified · U.S. public record (FOIA)
Source document: View the primary source document

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What was Central Intelligence Agency Current Intelligence Staff Study On North Vietnam about?: This is a declassified Central Intelligence Agency Current Intelligence Staff Study on North Vietnam and Sino‑Soviet Relations, prepared March fourth, nineteen sixty‑two. The record appears in the CIA’s ESAU series as study eighteen sixty‑two and is notable for its early analysis of how the Vietnamese communist movement balanced Chinese and Soviet influence during the first decade of the Cold War.
Why was this case declassified?: This material entered the public record through the U.S. declassification and Freedom of Information Act (FOIA) process. Storyflo narrates it directly from the public release.

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