Declassified USAF Reports On SIGINT and Electronic Warfare in Vietnam War

February 23, 2015

The DOD website of unclassified and declassified technical reports has the following declassified documents concerning U.S. military signals intelligence (SIGINT) and electronic warfare (EW) operations during the Vietnam War from 1961 to 1975.

* USAF, Project CHECO Report, Tactical Electronic Warfare Operations in SEA, 1962-1968, February 10, 1069, Secret/NOFORN/Air Force Eyes Only, 107 pages.

* USAF, Project CHECO Report, The EC-47 in Southeast Asia, September 20, 1968, Secret/NOFORN/Air Force Eyes Only, 75 pages.

* USAF, Project CHECO Report, The EC-47 in SEA: April 1968 - July 1970, September 12, 1970, Secret/NOFORN/Air Force Eyes Only, 85 pages.

* USAF, Project CHECO Report, Reconnaissance in SEAsia: July 1966 - June 1969, July 15, 1969, Secret/NOFORN/Air Force Eyes Only, 74 pages.

* USAF, Project CHECO Report, USAF Reconnaissance in Southeast Asia (1961-1966), October 25, 1966, Top Secret/NOFORN, 119 pages.

* General Research Corporation, Analysis of Tactical Intelligence Experience in Southeast Asia, May 1974, Secret, 337 pages.

* General Research Corporation, Analysis of Tactical Intelligence Experience in Southeast Asia, February 1976, Secret, 401 pages.

These are large documents, so please allow time for them to download.