Name: Roger Cobb Hallberg
Rank/Branch: E6/US Army Special Forces
Unit: Detachment A-302 5th Special Forces Group
Date of Birth: 18 September 1944 (Visalia CA)
Home City of Record: Palo Alto CA
Loss Date: 24 March 1967
Country of Loss: South Vietnam
Loss Coordinates: 120148N 1065547E (YU100305)
Status (in 1973): Missing In Action
Category: 2
Acft/Vehicle/Ground: Ground
Refno: 0630

Other Personnel In Incident: Jack T. Stewart (missing)

Source: Compiled by Homecoming II Project 01 April 1991 from one or more of
the following: raw data from U.S. Government agency sources, correspondence
with POW/MIA families, published sources, interviews. Updated by the P.O.W.


SYNOPSIS: On March 24, 1967, Capt. Jack Stewart and SSgt. Roger Hallberg were
advisors to a mobile strike force company on a combat operation in South

The Mike Force company was conducting a heliborne assault on March 24, 1967, 7
miles east of Bu Dop in Phuoc Long Province, South Vietnam, near the Cambodian
border. Shortly after landing, the company proceeded about 800 meters north
where the point element began receiving automatic weapons fire. SSgt. Hallberg
who was part of the point element, came back to the command group to report on
the situation because he had no radio.

Capt. Stewart, after assessing the situation, tried to maneuver the recon
platoon to flank the enemy, but it also ran into heavy automatic weapons fire.
The second platoon then started to pull out. It was determined that the unit had
been ambushed by two heavily armed NVA battalions. The remaining platoons fell
back to the command group and took up positions.

Stewart and Hallberg's attempts to consolidate positions around the landing zone
supported by airstrikes failed. Hallberg was wounded slightly, and his
commanding officer was wounded more seriously in the battle. When last seen,
they were fighting while providing cover for the safe withdrawal of their
companions who moved toward Bu Dop until they were picked up by friendly
helicopters. Another group was sent immediately to aid them, but when they
arrived at the site of the ambush they found no trace of Hallberg or Stewart.

Since the war ended in Southeast Asia, thousands of reports of Americans alive
in captivity have been received by the U.S. Government. Whether or not Hallberg
and Stewart are among those still held and alive is not known. What seems
certain, however, is that the Vietnamese know what happened to them.

Many years have passed since the end of the Vietnam War. The final chapter
cannot be written, and the final battle brought to an end until the men like
Stewart and Hallberg are brought home.





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On March 24, 1967, two members of the U.S. Army’s 5th Special Forces Group were serving as advisers to a Mobile Strike Force company on a combat operation in South Vietnam. After insertion into the landing zone, the company moved north and came under enemy fire in the vicinity of (GC) YU 100 305. The two advisors attempted to regroup the company by instructing the members to fall back to the landing zone. As the company fell back, the men were again attacked by enemy forces. As the company’s position was overrun, elements of the company broke away and moved toward Bu Dop, South Vietnam, with intent to be extracted by helicopters. The two Special Forces advisers were not extracted from the area, and neither man was seen or heard from again following the incident.

Staff Sergeant Roger Cobb Hallberg, who joined the U.S. Army from California, was a member of Detachment A-302 of the 5th Special Forces Group. He was one of the advisers who went missing during this action, and his remains have not been recovered. After the incident, the Army promoted SSG Hallberg to the rank of Sergeant First Class (SFC). Today, Sergeant First Class Hallberg is memorialized on the Courts of the Missing at the National Memorial Cemetery of the Pacific.

Based on all information available, DPAA assessed the individual's case to be in the analytical category of Active Pursuit.

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