Operation Tailwind (1970)

Operation Tailwind was a covert incursion into southeastern Laos during the Vietnam War, conducted between 11 September and 13 September 1970. The purpose of the operation was to create a diversion for a Royal Lao Army offensive and to exert pressure on the occupation forces of the People’s Army of Vietnam (PAVN). It involved a company-sized element of U.S. Army Special Forces and Montagnard commando (Hatchet Force) of the Military Assistance Command, Vietnam Studies and Observations Group (MACV-SOG or SOG).

Nearly 30 years later, Peter Arnett narrated a CNN/Time Magazine report produced by April Oliver, Jack Smith, Pam Hill, and others. The “Valley of Death” report claimed sarin nerve gas had been used, and other war crimes had been committed by U.S. forces during Tailwind, kicking off a controversy that ended in retraction of the claim by both news organizations and purging some staff members responsible for it.

Operation

During late 1970 the overall U.S.-supported military effort in the covert war in the Kingdom of Laos was foundering. Operation Gauntlet, a multi-battalion Royal Lao Army offensive that was to determine the fate of Paksong and the strategic Bolovens Plateau, was failing. A call went out to SOG’s Saigon headquarters asking if the highly-classified unit could insert an element near Chavane and disrupt PAVN defenses. Colonel John Sadler, SOG’s commander, replied in the affirmative, even though none of his cross-border reconnaissance teams had ever operated so deep in Laos. Indeed, the target area was 20 miles (30 km) beyond the unit’s authorized area of operations.

The mission was launched by three platoons of Command and Control Central’s (Kontum) Hatchet Company B and two U.S. Air Force Pathfinder Teams. The 16 Americans and 110 Montagnards, under the command of Captain Eugene McCarley were heli-lifted from a launch site at Dak To to a landing zone (LZ) in a valley 60 miles (100 km) to the west, near Chavane. The distance to the target was so great that the men were lifted by three U.S. Marine Corps CH-53 Sea Stallion helicopters, escorted by 12 AH-1 Cobra gunships.

McCarley then called down airstrikes on enemy troop dispositions and equipment caches. The North Vietnamese responded by trying to concentrate their forces, but the U.S. troops kept on the move, even at night.

Tailwind collection point for the wounded in Laos.
Tailwind collection point for the wounded in Laos.

On the morning of the third day the Americans overran an enemy bivouac and killed 54 PAVN troops. Why the enemy had not fled was a quandary until members of the Hatchet Force discovered a bunker buried beneath 12 feet of earth. Inside they found a huge cache of maps and documents. They had overrun the PAVN logistical headquarters that controlled all of Laotian Route 165. Two footlockers were quickly filled with the intelligence haul, and the Hatchet Force then began to look for a way out. The North Vietnamese were closing in, but McCarley, instead of moving toward an LZ large enough for the extraction of the entire force, dropped off elements at three separate (and smaller) landing zones, catching the North Vietnamese unprepared.

Casualties incurred during the operation amounted to three Montagnards killed in action and 33 wounded while all 16 Americans were wounded. Many more men of the Hatchet Force would have died had it not been for the efforts of SOG medic Sergeant Gary Rose, who was recommended for the Medal of Honor for his actions.

Actions taken during the extraction operations later came under fierce dispute. Allegations were made that U.S. aircraft, in an unprecedented reversal of policy and breach of international treaties, had utilized sarin nerve gas (“GB” in US/NATO nomenclature) when North Vietnamese ground troops began to attack the LZs. Indeed, it was not disputed that some chemical agent was utilized, nor that both North Vietnamese and American soldiers struggled against its effects. However, most witnesses, sworn and unsworn, stated categorically that only a potent tear gas (most probably a CN/CS mixture) was used. Others, according to two members of the U.S. media, insisted it was sarin, or a combination of tear gas and sarin.

Controversy

On 7 June 1998 a controversial version of the above events was broadcast during the premiere of the Cable News Network‘s NewsStand CNN & Time in a report entitled Valley of Death. The segment alleged that Operation Tailwind had been devised simply to eliminate a group of Americans who had defected to the enemy and were holed up in a Laotian village. The broadcast went on to claim that sarin had been utilized during the operation. According to Valley of Death, the agent had been sprayed from aircraft twice—once to prep the village and once during the extraction. It also claimed that over 100 men, women, and children had been killed during the attack on the village.

The broadcast (and the ensuing 15 June Time magazine article) seemed to have reliable credentials. Admiral Thomas Moorer, chairman of the Joint Chiefs of Staff at the time of Tailwind, stated that nerve agents had been used, and not just during this operation. Former SOG Lieutenant Robert Van Buskirk (one of the three platoon leaders) and three of the participating SOG sergeants allegedly lent testimony to support the allegations as edited and presented in the televised and published investigative report.

Van Buskirk stated that the Hatchet Force was exposed on the Landing Zone (“LZ”) when the teargasNorth Vietnamese Army, who had chemical warfare units stationed in southern Laos at the time, made no comment on what would have been a propaganda coup of gigantic proportions. agent was deployed to drive the enemy back. He also stated that he saw his men (who were not equipped with gas masks) convulsing when the wind blew the agent back upon the LZ. One key point of proof was missing from the broadcast: the

The reports, which indicated that war crimes had been committed, caused the Pentagon to launch its own investigation. It concluded the claims made in the program were false. Van Buskirk, it seemed, had forgotten the episode for 24 years and had only recently recalled his repressed memory and was also suffering from psychological problems. Admiral Moorer was 86 years old at the time of the story and living under assisted-care retirement.

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