What did the declassified documents reveal?

This is a declassified Central Intelligence Agency Current Intelligence Bulletin on the Formosa Straits, dated April thirtieth, nineteen fifty‑five. The bulletin is notable because it offers contemporaneous intelligence on Chinese Communist naval strength and activity in the Taiwan Strait during the early Cold War, a period when the United States was closely monitoring the security of the island of Formosa. The document was declassified by the Central Intelligence Agency and released to the public in two thousand two through The Black Vault archive. The release is available at archive dot org slash download slash us‑china‑intel‑C I 0 1 2 slash C I 0 1 2 d j v u dot txt. Current Intelligence Bulletin Document No. — [Top Secret code word excised] Classified as Top Secret, changed to: T S S C Next review date: two thousand — [date redacted] Auth: H R 7 O‑2 Date: August twenty‑first, nineteen fifty‑five Reviewer: Office of Current Intelligence, Central Intelligence Agency Report of the I A C Current Intelligence Group for the Formosa Straits Problem “This report is based on information received in Washington up to eleven hundred hours, twenty‑ninth of April, nineteen fifty‑five. 1. Chinese Communist submarine strength has increased from five to seven submarines. The two additions, first observed in March, nineteen fifty‑five, are both Soviet long‑range types. The five boats previously accepted were two long‑range types and three short‑range types; one of the latter is believed non‑operational. These seven boats, representing transfers from the Soviets, are based at Tsingtao and are believed manned by Chinese crews. The six operational boats have the capability of conducting war patrols in the China coastal area. 2. The presence of a Communist patrol

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 Bulletin On The Formosa

◆ BLUF — The short version

This is a declassified Central Intelligence Agency Current Intelligence Bulletin on the Formosa Straits, dated April thirtieth, nineteen fifty‑five. The bulletin is notable because it offers contemporaneous intelligence on Chinese Communist naval strength and activity in the Taiwan Strait during the early Cold War, a period when the United States was closely monitoring the security of the island of Formosa.

Date: SEP 25 · 2026
Release: Declassified · U.S. public record (FOIA)
Source document: View the primary source document

↯ Dispatch — press play1:00

0:001:00

↯ Share

X in r/

Episode notes

View the primary source document

Questions about this case

What was Central Intelligence Agency Current Intelligence Bulletin On The Formosa about?: This is a declassified Central Intelligence Agency Current Intelligence Bulletin on the Formosa Straits, dated April thirtieth, nineteen fifty‑five. The bulletin is notable because it offers contemporaneous intelligence on Chinese Communist naval strength and activity in the Taiwan Strait during the early Cold War, a period when the United States was closely monitoring the security of the island of Formosa.
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.

intelligence-vault

Related cases

✉ Dispatches

A short dispatch when a new file is released — narrated, answer-first, and linked straight to the primary source. No spam; unsubscribe anytime.

↯ Subscribe to the feed

RSS feed Browse all cases

Central Intelligence Agency Current Intelligence Bulletin On The Formosa

Questions about this case

Related cases

Today, We Examine A Top Secret State Department Cable From April

CIA Weekly Summary Formosa Straits Report, Four May Nineteen Fifty Five

Navy: Declassified Presents A Declassified U.s.

CIA A Storyflo Podcast.

CIA Today, Declassified Presents Excerpts From A Declassified Central Intelligence

Questions about this case

Related cases

Today, We Examine A Top Secret State Department Cable From April

CIA Weekly Summary Formosa Straits Report, Four May Nineteen Fifty Five

Navy: Declassified Presents A Declassified U.s.

CIA A Storyflo Podcast.

CIA Today, Declassified Presents Excerpts From A Declassified Central Intelligence

Get the next declassified case in your inbox