Texas Tech University

Market Time

Operation
Title
Market Time
Start Date
3/11/1965
CTZ
I-IV
TAO
the coast of South Vietnam
Objective
to conduct surveillance of the 1,200 mile South Vietnamese coastline and halt seaborne infiltration of supplies to Communist troops
Description
The operation was organized around nine patrol sectors. Three zones of interdiction included the air surveillance zone, the outer surface barrier, and the inner or shallow-water barrier. The air surveillance zone, 100-150 miles out to sea, identified suspicious vessels, photographed them, and reported them to Coastal Surveillance Centers. The outer surface barrier was originally patrolled by destroyers, minesweepers and later radar picket escorts (DER). It operated within 40 miles of the coast. In May 1965, the USCG began to patrol this area, with the Australian aid beginning in 1967. Their mission was to stop seaborne supplies carried by trawlers. The inner barrier was patrolled by the South Vietnamese Junk Force (Coastal Force) and several USN ships. They were authorized to stop and seize any vessel finishing or trading within a 12 mile limit. In July 1965, the Junk force was integrated into the VNN. The operation was highly successful in closing down DRV supply lines by sea. From 1966 to 1967 several DRV trawlers were sunk and many more were inspected or boarded. Except for ships attempting to resupply forces after Tet 1968, no enemy ships appeared from July 1967 and August 1969. When the DRV attempted to resume their trawler traffic in August 1969, one ship was sunk and all but one were turned back. Beginning in September 1970, as a part of Vietnamization the VNN took charge of the inner screen. Combined operations continued through 1971, but by 1972 the outer barrier and the Coast Guard cutters had been turned over to the VNN.
Allied Units Involved
Unit
U.S. Vietnam Patrol Force (TF 71)
Branch
United States Navy
Branch Abbrv.
USN
Unit
after July 31, 1965 until termination in March 1973 the Vietnam Patrol Force became the Coastal Surveillance Force (TF 115)
Branch
United States Navy
Branch Abbrv.
USN
Unit
Coast Guard Squadron Three (USCG)
Unit
Royal Australian Navy
Unit
South Vietnamese Navy (VNN)
Unit
South Vietnamese Junk Force
Enemy Units Involved
Unit
DRV Navy
Unit
VC
Sources
Author
Spencer C. Tucker
Title
The Encyclopedia Of The Vietnam War: A Political, Social & Military History
Author
Harry G. Summers, Jr.
Title
Historical Atlas Of The Vietnam War
Author
National Archives and Records Administration
Title
Preliminary Checklist Of United States Military Operations In Southeast Asia