Robert B. Rheault

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Robert Bradley Rheault
Robert B. Rheault in 1946 at the U.S. Military Academy
Born (1925-10-31)October 31, 1925
Boston, Massachusetts
Died October 16, 2013(2013-10-16) (aged 87)
Rockland, Maine
Allegiance  United States of America
Service/branch Emblem of the United States Department of the Army.svg United States Army
Years of service 1946–1969
Rank US-O6 insignia.svg Colonel
Unit U.S. Army Special Forces
Commands held First Special Forces Group
Fifth Special Forces Group
Battles/wars Korean War
Vietnam War
Awards Silver Star ribbon.svg Silver Star
Other work Educator Outward Bound Program

Robert Bradley Rheault /r/ (October 31, 1925 – October 16, 2013) was an American colonel in the U.S. Army Special Forces who served as commander of the First Special Forces Group in Okinawa, and the Fifth Special Forces Group in Vietnam from May to July 1969. Rheault was best known for his role as a co-conspirator and commander of the unit responsible for the 20 June 1969 execution of South Vietnam double agent, Thai Khac Chuyen, who compromised intelligence agents involved in Project GAMMA operating in Vietnam and Cambodia.[1]

Early life and education[edit]

Robert Rheault was born 31 October 1925 to Charles Auguste and Rosamond (Bradley) Rheault in Westwood in suburban Boston; his father had served with the Royal Canadian Mounted Police and was stationed in Labrador where he met Rosamond who had been working at the Grenfell Medical Mission prior to immigrating to the United States in 1924.[2] His mother was from a prominent Boston family.[1][3][4] Rheault spoke French from an early age and attended Phillips Exeter Academy, graduating in 1943. He graduated in 1946 from the U.S. Military Academy at West Point, New York, and engaged in post-graduate studies at the University of Paris, and earned a master's degree in international relations at George Washington University.[1][5]

Military service and post-military career[edit]

Rheault was awarded the Silver Star for his actions in combat in the Korean War, attaining the rank of captain. After Korea, Rheault taught French at the U.S. Military Academy for several years in the mid-1950s, attaining the rank of major. Rheault attended the Special Forces Qualification course, the Q-Course, in 1961, and his initial Special Forces assignment was with the 10th Special Forces Group in Germany. He would later command the 1st Special Forces Group on Okinawa before being assigned to Vietnam to take command of the 5th Special Forces Group. Colleagues said of Rheault that he was one of the most respected and beloved officers ever in Special Forces, a "must promote" to General Officer rank if his command, and career, had not been ended prematurely by the Green Beret Affair.[5]

Life Magazine cover from 14 November 1969 with Robert Rheault shortly after resolution of the "Green Beret Affair"

All U.S. Army Special Forces, in 1969, operated under the control of 5th Special Forces Group, headquartered at Nha Trang, on the southeast coast of South Vietnam, and there was a close relationship with the CIA that complicated the chain of command and philosophy of rules of engagement.[6] Colonel Rheault took command of 5th in May 1969 and his unit was charged with seeking out leaks in a CIA-directed espionage ring as part of Project GAMMA. Colonel Rheault along with six of his Special Forces officers and a sergeant were arrested by the U.S. Military under the orders of General Creighton Abrams and threatened with court-martial charges of murder and conspiracy to commit murder, arising from the alleged extrajudicial killing of Thai Khac Chuyen, a Vietnamese double agent for the Americans and the North Vietnamese.[1][7]

The investigation and court-martial, held by the U.S. Army in Vietnam, rapidly became engulfed in a firestorm of media publicity. Most of the American public, and the Special Forces, believed that Colonel Rheault and all involved had been made scapegoats for a matter that reflected poorly upon the Army.[8] The view that there was no wrongdoing by the soldiers was probably best stated by Rheault's 11-year-old son, Robert, Jr. who upon learning of his father's arrest said, "What is all the fuss about? I thought that was what dad was in Vietnam kill Viet Cong".[3] However, the prosecution provided testimony showing that Chuyen was shot by Rheault's officers and his body dumped into the South China Sea. Further, they argued that Rheault was most certainly aware of the provisions of the Third Geneva Convention on the treatment of prisoners of war and Article 118 of the Uniform Code of Military Justice. He approved the execution of Chuyen, and also approved the cover story that Chuyen was lost on an undercover mission designed to prove his loyalty to South Vietnam and the United States.[1] Judge Advocate General Captain John Stevens Berry, called General Abrams and CIA officials to the witness stand, but both declined to testify. Finally in September 1969 the Secretary of the Army Stanley Resor announced to all that all charges would be dropped against the soldiers since the CIA, which the interests of national security had refused to make its personnel available as witnesses. Thus a fair trial was not possible. On October 31, 1969, upon ascertaining that further military commands and promotions were not likely, Colonel Rheault requested immediate retirement from the Army. All others charged in the affair also had their careers effectively ended, so all left the service soon afterwards.[3][8]

After the war, Francis Ford Coppola, director of the 1979 film Apocalypse Now said that the character Colonel Walter Kurtz in the film was loosely based upon Rheault, whom he had become aware of through the 1969 news accounts of the Green Beret Affair.[9]

Upon retirement from the military, Rheault served as an instructor, program leader, and later, acting president of the Hurricane Island Outward Bound School in Rockland, Maine; retiring from the school in 2001 after 32 years of service. He also served on the board of directors of The Apprenticeshop, a traditional boat building and maritime school in Rockland,[10] and on the board of directors of the The Warrior Connection, a 501(c)(3) organization dedicated to the rehabilitation of military veterans suffering from posttraumatic stress disorder (PTSD).[11]

Family life[edit]

In 1947 Rheault married Caroline "Nan" Young (1927–2006), a Vassar College student from New York, and they had three children: Susanne; Michèle; and Robert B. "Skid" Rheault, Jr.[3] Like her husband, Caroline Young Rheault was fluent in French. She frequently traveled to and maintained a residence in France, and was a respected artist and book illustrator in Martha's Vineyard.[12] Rheault resided in Owls Head, Maine with his second wife, Susan St. John, married in 1977.[2] He had adopted two of her children by previous marriage, Nicholas St. John-Rheault and Alexis St. John-Rheault.[2] Rheault's son Robert B. Rheault, Jr. (born 1958) is a marine biologist and businessman with a doctoral degree in oceanography from the University of Rhode Island.[13]

Rheault died on 16 October 2013 at his home in Owls Head, Maine.[14]


  1. ^ a b c d e "The "Green Beret Affair": a brief introduction.". By Bob Seals, Military History Online (2007). Retrieved 5 Nov 2011. 
  2. ^ a b c "TAPS Colonel Robert B. Rheault". Special Forces Association, Chapter IX - Isaac Camacho Chapter. Retrieved 26 August 2014. 
  3. ^ a b c d A believer in self-reliance and elitism By Frank McCulloch, Life Magazine, 14 November 1969. p. version
  4. ^ United States Census 1930; Westwood, Norfolk, Massachusetts; Roll: 937; Page: 6B; Enumeration District: 135; Image: 1066.0.
  5. ^ a b Jeff Stein (1992). Murder in Wartime: The Untold Spy Story that Changed the Course of the Vietnam War. (New York: St. Martin's Press) pp.60-62. ISBN 0-312-07037-3
  6. ^ L. Fletcher Prouty (1969). Green Berets and the CIA: General Abrams strikes back. The New Republic 23 August 1969 web version
  7. ^ Rheault and the mysterious case of Thai Khac Chuyen, Life Magazine, 14 November 1969. p. version
  8. ^ a b John Stevens Berry (1984). Those Gallant Men: On Trial in Vietnam. Presidio Press, Novato, CA. pp.151-163. ISBN 0-89141-186-0
  9. ^ Isaacs, Matt (17 November 1999). "Agent Provocative". SF Weekly. Retrieved 5 November 2011. 
  10. ^ "Board of Directors". The Apprenticeshop, Rockland, Maine. Retrieved 5 November 2011. 
  11. ^ "Leadership Team". The Warrior Connection. Retrieved 7 Nov 2011. 
  12. ^ "Obituary: Caroline Rheault as a Vivacious Artist". Holly Nadler. Vineyard Gazette. 8 September 2006. Retrieved 5 November 2011. 
  13. ^ "Robert B. Rheault, Executive Director". East Coast Shellfish Growers Association. Retrieved 5 November 2011. 
  14. ^ Elaine Woo. "Robert Rheault dies at 87; Green Beret commander accused of murder". Los Angeles Times --Obituary 2 Nov 2013. Retrieved 6 Nov 2013.