What did the declassified documents reveal?

From Declassified, a Storyflo podcast. This NSA memorandum, dated August fourth, nineteen-fifty-two, concerns air operations on the Chinese mainland and Manchuria. It highlights a significant increase in Communist airpower and discusses the Joint Chiefs of Staff's restrictions on preventative and retaliatory strikes. This record is drawn from vault.fbi.gov, and documents2.theblackvault.com. This document, identified as CI Zero Zero Nine Two One, was declassified under an unspecified authority and released to the public on an unknown date. It forms part of a larger collection of U.S. intelligence on China. The memorandum, titled "Air Operations on the Chinese Mainland and Manchuria," opens with a background section: One. Whereas in June nineteen-fifty-one the Communist aircraft strength in China-Manchuria-North Korea was one thousand aircraft, four hundred of which were jet fighters, the strength of this force is now estimated to be approximately two thousand one hundred aircraft, one thousand three hundred of which are jet fighters. The greatest portion of this force, presently concentrated in North China and Manchuria, is capable of undertaking an air offensive of such magnitude as to represent a threat to the security of U.S. forces in Korea. The size of this force has developed to such an extent that success or failure in achieving air superiority over Korea in event of expanded conflict may lie with the force that strikes the initial decisive blow. Current Considerations. Two. In light of this threat, a review has been made of the standing instructions known to be furnished by the Joint Chiefs of Staff to C-I-N-C-F-E with respect to retaliatory or preventive air attacks on the Chinese mainland and Manchuria. This review reveals that: A. C-I-N-C-F-E does not have authority to order preventive action on the Chinese mainland unless prior approval is obtained from the Joint Chiefs of Staff. B. Even if the Communist Air Force launches a large scale air offensive in Korea, C-I-N-C-F-E must first obtain the Joint Chiefs of Staff clearance before any retaliatory action against bases and forces outside of Korea can be taken. Three. It is a recognized fact that any large scale Communist air offensive cannot be neutralized by defensive air action alone. Rather, it should be countered immediately with air attacks on the enemy's operating bases and the aircraft and supporting facilities thereon. A preferable course of action would involve undertaking such attacks beforehand as an anticipatory measure. Although preventive action by our forces is not considered necessary at this time, there is a possibility that intelligence may provide C-I-N-C-F-E with some warning of an impending massive Communist air attack. However, in the opinion of C-G, F-E-A-F, such warning could not be expected to provide C-I-N-C-F-E with sufficient time to obtain the Joint Chiefs of Staff approval of preventive or retaliatory action that C-I-N-C-F-E may recommend. Inasmuch as…

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.

FBI From Declassified, A Storyflo Podcast.

◆ BLUF — The short version

From Declassified, a Storyflo podcast. This NSA memorandum, dated August fourth, nineteen-fifty-two, concerns air operations on the Chinese mainland and Manchuria. It highlights a significant increase in Communist airpower and discusses the Joint Chiefs of Staff's restrictions on preventative and retaliatory strikes.

Date: OCT 11 · 2026
Release: Declassified · U.S. public record (FOIA)
Source document: View the primary source document

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What was FBI From Declassified, A Storyflo Podcast. about?: From Declassified, a Storyflo podcast. This NSA memorandum, dated August fourth, nineteen-fifty-two, concerns air operations on the Chinese mainland and Manchuria. It highlights a significant increase in Communist airpower and discusses the Joint Chiefs of Staff's restrictions on preventative and retaliatory strikes.
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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