What did the declassified documents reveal?

This is Declassified. Today, we examine a declassified Central Intelligence Agency record, a memorandum detailing intelligence estimates on Chinese Communist intentions to intervene in Korea. This document, dated April twenty-seventh, nineteen-fifty-one, provides critical insight into American intelligence assessments during a pivotal period of the Korean War. You can find this document on documents2.theblackvault.com. This memorandum was released to the public under the Freedom of Information Act. While a specific F-O-I-A case number is not provided, its declassification allows for public review of intelligence assessments from over seventy years ago, offering a glimpse into the information informing policymakers during the Korean conflict. The document opens by referencing intelligence estimates indicating that "full-scale Chinese Communist intervention in Korea, barring a Soviet decision for global war, was not probable in nineteen-fifty." It notes that the Office of Intelligence Research had no information to indicate whether these estimates were shown to General MacArthur at Wake Island, stating that responsibility for informing the Far East Command rested with the Department of Defense. It then describes National Intelligence Estimate, N-I-E-2, published on November fifth, nineteen-fifty. This N-I-E, a coordinated estimate from the intelligence organizations of the Departments of State, Army, Navy, and Air Force, "placed Chinese Communist strength already in North Korea at from thirty thousand to forty thousand troops, noting that they were engaging U-N forces as far as one hundred miles south of the Manchurian border." It further assessed Chinese Communist strength at "seven hundred thousand troops, of which at least two hundred thousand were regular field forces," and stated that "these strengths give the Chinese Communists the capability of halting further U-N advances or forcing a rollback." The N-I-E concluded, "the objective of the Chinese Communist intervention appears to be to halt the advance of U-N forces and preserve the North Korean regime on Korean soil." A re-estimate, N-I-E-2/1, published on November twenty-fourth, further noted that the objective of Chinese Communist intervention was "to maintain or increase their military strength in North Korea and, failing to obtain a U-N withdrawal by these means, to intervene further." On November twenty-seventh, N-I-E-2/2 was published, containing a Soviet Air Force reaction to U-N air attacks on targets in Siberia. The document reiterates that "responsibility for informing the Far East Command was vested with the Department of Defense whose representatives participated in their preparation and received copies of the documents." A series of N-I-Es were devoted to "the question of Chinese Communist intentions and capabilities prior to the time the Chinese launched their offensive." These coordinated interdepartmental views. The Department of State, through its Special Assistant for…

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.

Today, We Examine A Declassified Central Intelligence Agency Record

◆ BLUF — The short version

This is Declassified. Today, we examine a declassified Central Intelligence Agency record, a memorandum detailing intelligence estimates on Chinese Communist intentions to intervene in Korea. This document, dated April twenty-seventh, nineteen-fifty-one, provides critical insight into American intelligence assessments during a pivotal period of the Korean War.

Date: OCT 21 · 2026
Release: Declassified · U.S. public record (FOIA)
Source document: View the primary source document

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What was Today, We Examine A Declassified Central Intelligence Agency Record about?: This is Declassified. Today, we examine a declassified Central Intelligence Agency record, a memorandum detailing intelligence estimates on Chinese Communist intentions to intervene in Korea. This document, dated April twenty-seventh, nineteen-fifty-one, provides critical insight into American intelligence assessments during a pivotal period of the Korean 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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