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Learn more about the project: Lam, Vinh-The, and Darryl Friesen. "A Web-based Database of CIA Declassified Documents on the Vietnam War." Online 28, no. 4 (2004): 31-35.

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Title:
Appraisal of the bombing of North Vietnam (1 Jan - 31 Mar 68)
Date of Creation:
April 1, 1968
Date of Declassification:
April 22, 1994
Type of Document:
Report
Level of Classification:
SECRET
Status of Copy:
ORIGINAL
Pagination, Illustration:
21 p., 1 map
Abstract:
President Johnson's speech of 31 March restricting the ROLLING THUNDER program to operations south of the 20th parellel was the most significant development during the first quarter of 1968. During the three months preceding the presidential announcement, a combination of bad weather, operational restrictions and diversion of sorties to the Khe Sanh area limited the ROLLING THUNDER effort. The level of air activity was at its lowest point since the first quarter of 1966. Only 14,700 attack sorties were flown against targets during the quarter, compared with a quarterly average of 26,700 sorties in 1967 and 20,300 in 1966. Primary emphasis was against lines of comunications south of Thanh Hoa, where about seventy-five per cent of all attack sorties were flown.
Declassified Documents Reference System Location:
1996-0622