Dieter Felix Gerhardt (born 1 November 1935) is a former
commodore
Commodore may refer to:
Ranks
* Commodore (rank), a naval rank
** Commodore (Royal Navy), in the United Kingdom
** Commodore (India), in India
** Commodore (United States)
** Commodore (Canada)
** Commodore (Finland)
** Commodore (Germany) or ' ...
in the
South African Navy
The South African Navy (SA Navy) is the naval warfare branch of the South African National Defence Force.
The Navy is primarily engaged in maintaining a conventional military deterrent, participating in counter-piracy operations, fishery prote ...
and commander of the strategic
Simon's Town
Simon's Town (), sometimes spelled Simonstown, is a town in the Western Cape, South Africa and is home to Naval Base Simon's Town, the South African Navy's largest base. It is located on the shores of Simon's Bay in False Bay, on the eastern s ...
naval dockyard. He was arrested by the
FBI
The Federal Bureau of Investigation (FBI) is the domestic Intelligence agency, intelligence and Security agency, security service of the United States and Federal law enforcement in the United States, its principal federal law enforcement ag ...
in
New York City
New York, often called New York City (NYC), is the most populous city in the United States, located at the southern tip of New York State on one of the world's largest natural harbors. The city comprises five boroughs, each coextensive w ...
in 1983 following information obtained from a Soviet defector. He was convicted of
high treason
Treason is the crime of attacking a state authority to which one owes allegiance. This typically includes acts such as participating in a war against one's native country, attempting to overthrow its government, spying on its military, its d ...
as a
spy for the
Soviets
The Soviet people () were the citizens and nationals of the Soviet Union. This demonym was presented in the ideology of the country as the "new historical unity of peoples of different nationalities" ().
Nationality policy in the Soviet Union ...
for a period of twenty years in
South Africa
South Africa, officially the Republic of South Africa (RSA), is the Southern Africa, southernmost country in Africa. Its Provinces of South Africa, nine provinces are bounded to the south by of coastline that stretches along the Atlantic O ...
together with his second wife, Ruth, who had acted as his courier. Both were released prior to the change of government following the
1994 general election.
Early life and education
Gerhardt was born on 1 November 1935, in
Berlin
Berlin ( ; ) is the Capital of Germany, capital and largest city of Germany, by both area and List of cities in Germany by population, population. With 3.7 million inhabitants, it has the List of cities in the European Union by population withi ...
,
Nazi Germany
Nazi Germany, officially known as the German Reich and later the Greater German Reich, was the German Reich, German state between 1933 and 1945, when Adolf Hitler and the Nazi Party controlled the country, transforming it into a Totalit ...
.
Military training
Gerhardt joined the
South African Navy
The South African Navy (SA Navy) is the naval warfare branch of the South African National Defence Force.
The Navy is primarily engaged in maintaining a conventional military deterrent, participating in counter-piracy operations, fishery prote ...
after his father successfully persuaded naval chief
Hugo Biermann to take the troubled teenager under his wing to try to instill discipline in him; he graduated from the Naval Academy in
Saldanha Bay
Saldanha Bay () is a natural harbour on the south-western coast of South Africa. The town that developed on the northern shore of the bay, also called Saldanha, Western Cape, Saldanha, was incorporated with five other towns into the Saldanha Bay ...
in 1956, winning the Sword of Honour. In 1962, he attended a
Royal Navy
The Royal Navy (RN) is the naval warfare force of the United Kingdom. It is a component of His Majesty's Naval Service, and its officers hold their commissions from the King of the United Kingdom, King. Although warships were used by Kingdom ...
mine school in
Portsmouth
Portsmouth ( ) is a port city status in the United Kingdom, city and unitary authority in Hampshire, England. Most of Portsmouth is located on Portsea Island, off the south coast of England in the Solent, making Portsmouth the only city in En ...
and completed the parachute training course at
RAF Abingdon
Royal Air Force Abingdon, or more simply RAF Abingdon, is a former Royal Air Force station near Abingdon, Oxfordshire. It is now known as Dalton Barracks and is used by the Royal Logistic Corps.
History
In 1925, a plan was approved to bui ...
. After his training in Britain, he was seconded to the
Royal Navy
The Royal Navy (RN) is the naval warfare force of the United Kingdom. It is a component of His Majesty's Naval Service, and its officers hold their commissions from the King of the United Kingdom, King. Although warships were used by Kingdom ...
. He started his spying career in his late twenties, while still a junior naval officer, by offering his services to the
South African Communist Party
The South African Communist Party (SACP) is a communist party in South Africa. It was founded on 12 February 1921 as the Communist Party of South Africa (CPSA), and tactically dissolved itself in 1950 in the face of being declared illegal by t ...
.
Bram Fischer
Abraham Louis Fischer (23 April 19088 May 1975) was a South African Communist lawyer of Afrikaner descent with partial Anglo-African ancestry from his paternal grandmother, notable for anti-apartheid activism and for the legal defence of anti- ...
referred him to the
Soviet
The Union of Soviet Socialist Republics. (USSR), commonly known as the Soviet Union, was a List of former transcontinental countries#Since 1700, transcontinental country that spanned much of Eurasia from 1922 until Dissolution of the Soviet ...
embassy in
London
London is the Capital city, capital and List of urban areas in the United Kingdom, largest city of both England and the United Kingdom, with a population of in . London metropolitan area, Its wider metropolitan area is the largest in Wester ...
, where the
"walk-in" was recruited into the
GRU
Gru is a fictional character and the main protagonist of the ''Despicable Me'' film series.
Gru or GRU may also refer to:
Arts and entertainment
* Gru (rapper), Serbian rapper
* Gru, an antagonist in '' The Kine Saga''
Organizations Georgia (c ...
, the Soviet
military intelligence
Military intelligence is a military discipline that uses information collection and analysis List of intelligence gathering disciplines, approaches to provide guidance and direction to assist Commanding officer, commanders in decision making pr ...
branch, and instructed to continue his career in the South African military.
Spy activities
As part of his service in the Royal Navy, he trained at and served on , and passed classified information about the weapons systems there to the Soviets. Among the systems he compromised through these activities were the
SeaCat and
Sea Sparrow missiles. He was also responsible for passing the first intelligence information about the French
Exocet
The Exocet () is a French-built anti-ship missile whose various versions can be launched from Warship, surface vessels, Submarine, submarines, Helicopter, helicopters and fixed-wing aircraft.
Etymology
The missile's name was given by M. Guil ...
missile to the Soviets. British journalist and security services specialist
Chapman Pincher maintained that, while in London in the late 1960s, Gerhardt was able to interview Royal Navy
Polaris
Polaris is a star in the northern circumpolar constellation of Ursa Minor. It is designated α Ursae Minoris (Latinisation of names, Latinized to ''Alpha Ursae Minoris'') and is commonly called the North Star or Pole Star. With an ...
submarine
A submarine (often shortened to sub) is a watercraft capable of independent operation underwater. (It differs from a submersible, which has more limited underwater capability.) The term "submarine" is also sometimes used historically or infor ...
crews for potential candidates that the Soviets could approach. It was also during this time that he met his first wife, British-born
Janet Coggin, whom he married in 1958.
Coggin says she became aware of her husband's
Cold War
The Cold War was a period of global Geopolitics, geopolitical rivalry between the United States (US) and the Soviet Union (USSR) and their respective allies, the capitalist Western Bloc and communist Eastern Bloc, which lasted from 1947 unt ...
spying activities eight years later in 1966, but chose not to turn him in, fearing that he would be
executed
Capital punishment, also known as the death penalty and formerly called judicial homicide, is the state-sanctioned killing of a person as punishment for actual or supposed misconduct. The sentence (law), sentence ordering that an offender b ...
, leaving her children fatherless. She says Gerhardt eventually gave her an ultimatum to become a spy too, which she declined, forcing the couple's separation. She divorced him in 1966 and moved to
Ireland
Ireland (, ; ; Ulster Scots dialect, Ulster-Scots: ) is an island in the North Atlantic Ocean, in Northwestern Europe. Geopolitically, the island is divided between the Republic of Ireland (officially Names of the Irish state, named Irelan ...
with her children, claiming that she lived in constant fear of the Soviet security services. She subsequently published a book in 1999 about her experiences called ''The Spy's Wife''.
In 1973, Gerhardt married his second wife,
Ruth Johr, a Swiss citizen who author
Chapman Pincher claims was already a spy for the
German Democratic Republic
East Germany, officially known as the German Democratic Republic (GDR), was a country in Central Europe from Foundation of East Germany, its formation on 7 October 1949 until German reunification, its reunification with West Germany (FRG) on ...
. According to Gerhardt, he recruited her shortly after they were married. She travelled to
Moscow
Moscow is the Capital city, capital and List of cities and towns in Russia by population, largest city of Russia, standing on the Moskva (river), Moskva River in Central Russia. It has a population estimated at over 13 million residents with ...
to undergo training.

Gerhardt rose through the ranks of the naval establishment as his career progressed. Upon his return from training in the
United Kingdom
The United Kingdom of Great Britain and Northern Ireland, commonly known as the United Kingdom (UK) or Britain, is a country in Northwestern Europe, off the coast of European mainland, the continental mainland. It comprises England, Scotlan ...
in the early 1970s, he served as the naval liaison officer with the defence company that subsequently become
Armscor. From 1972–1978, he was appointed as a senior staff officer to the Chief of the SADF in
Pretoria
Pretoria ( ; ) is the Capital of South Africa, administrative capital of South Africa, serving as the seat of the Executive (government), executive branch of government, and as the host to all foreign embassies to the country.
Pretoria strad ...
.
In this position he was able to access
South African Army
The South African Army is the principal Army, land warfare force of South Africa, a part of the South African National Defence Force (SANDF), along with the South African Air Force, South African Navy and South African Military Health Servi ...
and
Air Force
An air force in the broadest sense is the national military branch that primarily conducts aerial warfare. More specifically, it is the branch of a nation's armed services that is responsible for aerial warfare as distinct from an army aviati ...
secrets and plans regarding the
South African Border War
The South African Border War, also known as the Namibian War of Independence, and sometimes denoted in South Africa as the Angolan Bush War, was a largely asymmetric conflict that occurred in Namibia (then South West Africa), Zambia, and Angol ...
. He claims direct involvement in aspects of
Israel
Israel, officially the State of Israel, is a country in West Asia. It Borders of Israel, shares borders with Lebanon to the north, Syria to the north-east, Jordan to the east, Egypt to the south-west, and the Mediterranean Sea to the west. Isr ...
i and South Africa's military cooperation, using this position in 1975 to pass Israeli secrets to the Soviets, including details of the purchase of
Jericho missiles from Israel.
Later, he was appointed commander of the strategically important
Simonstown naval dockyard. In this position, he had access to all the
South African Naval intelligence reports from the Silvermine listening post near
Cape Town
Cape Town is the legislature, legislative capital city, capital of South Africa. It is the country's oldest city and the seat of the Parliament of South Africa. Cape Town is the country's List of municipalities in South Africa, second-largest ...
, as well as technical details of weapons systems. He reportedly revealed to the Soviets most of the Western naval surveillance techniques for the South Atlantic. During the 1982
Falklands War
The Falklands War () was a ten-week undeclared war between Argentina and the United Kingdom in 1982 over two British Overseas Territories, British dependent territories in the South Atlantic: the Falkland Islands and Falkland Islands Dependenci ...
, Gerhardt was allegedly able to use his position to supply the Soviets with detailed information about the locations of Royal Navy ships in the south
Atlantic
The Atlantic Ocean is the second largest of the world's five oceanic divisions, with an area of about . It covers approximately 17% of Earth's surface and about 24% of its water surface area. During the Age of Discovery, it was known for se ...
that the South African Navy intercepted at Silvermine.
Admiral of the Fleet
An admiral of the fleet or shortened to fleet admiral is a senior naval flag officer rank, usually equivalent to field marshal and marshal of the air force. An admiral of the fleet is typically senior to an admiral.
It is also a generic ter ...
Lord Hill-Norton publicly contradicted this view, but supported screening of Royal Navy officers who had been in contact with Gerhardt throughout his career.
Gerhardt visited the USSR five times during his career, while his wife travelled with him twice in 1972 and 1976. He was reportedly paid 800,000
Swiss franc
The Swiss franc, or simply the franc, is the currency and legal tender of Switzerland and Liechtenstein. It is also legal tender in the Italian exclave of Campione d'Italia which is surrounded by Swiss territory. The Swiss National Bank (SNB) iss ...
s by the GRU for his spying activities; his contact in the GRU said that money was not the motive for Gerhardt.
Arrest, trial and subsequent release
Gerhardt's cover was finally blown by Soviet double agent
Vladimir Vetrov
Vladimir Ippolitovich Vetrov (; 10 October 1932 – 23 January 1985) was a high-ranking KGB spy during the Cold War who decided to covertly release valuable information to France and NATO on the Soviet Union's clandestine program aimed at ...
(given the codename "
Farewell" by France's
DST intelligence service) He was arrested at his hotel in
New York City
New York, often called New York City (NYC), is the most populous city in the United States, located at the southern tip of New York State on one of the world's largest natural harbors. The city comprises five boroughs, each coextensive w ...
in January 1983 in a
sting operation
In law enforcement, a sting operation is a deceptive operation designed to catch a person attempting to commit a crime. A typical sting will have an undercover law enforcement officer, detective, or co-operative member of the public play a rol ...
by the
Federal Bureau of Investigation
The Federal Bureau of Investigation (FBI) is the domestic Intelligence agency, intelligence and Security agency, security service of the United States and Federal law enforcement in the United States, its principal federal law enforcement ag ...
while he was taking a degree in
mathematics
Mathematics is a field of study that discovers and organizes methods, Mathematical theory, theories and theorems that are developed and Mathematical proof, proved for the needs of empirical sciences and mathematics itself. There are many ar ...
at
Syracuse University
Syracuse University (informally 'Cuse or SU) is a Private university, private research university in Syracuse, New York, United States. It was established in 1870 with roots in the Methodist Episcopal Church but has been nonsectarian since 1920 ...
. The
CIA
The Central Intelligence Agency (CIA; ) is a civilian foreign intelligence service of the federal government of the United States tasked with advancing national security through collecting and analyzing intelligence from around the world and ...
interrogated him for 11 days, during which time he gave up one of his Soviet handlers,
Vitaly Shlykov (codename "Bob"). Shlykov, who did not know that the Gerhardts had been arrested, was also arrested on 25 January when he travelled to
Zürich
Zurich (; ) is the list of cities in Switzerland, largest city in Switzerland and the capital of the canton of Zurich. It is in north-central Switzerland, at the northwestern tip of Lake Zurich. , the municipality had 448,664 inhabitants. The ...
under the alias "Mikhail Nikolayev" for a pre-arranged meeting with Ruth Gerhardt. He had in his possession $100,000 in cash that he intended to pay her; he did not disclose his real identity to Swiss authorities, and was sentenced to three years imprisonment for spying.
The then
Prime Minister of South Africa
The prime minister of South Africa ( was the head of government in South Africa between 1910 and 1984.
History of the office
The position of Prime Minister was established in 1910, when the Union of South Africa was formed. He was appointed ...
P.W. Botha announced Gerhardt's arrest to the world in a special press conference on 26 January 1983. Following his deportation to South Africa, Gerhardt and his wife were tried ''
in camera
''In camera'' (; Latin: "in a chamber"). is a legal term that means ''in private''. The same meaning is sometimes expressed in the English equivalent: ''in chambers''. Generally, ''in-camera'' describes court cases, parts of it, or process wh ...
'' in the
Cape Town Supreme Court, with the prospect of a death sentence being handed down for
high treason
Treason is the crime of attacking a state authority to which one owes allegiance. This typically includes acts such as participating in a war against one's native country, attempting to overthrow its government, spying on its military, its d ...
. In his trial, Gerhardt stated that the repulsion he felt towards his father's right-wing political beliefs drove him to fight
apartheid
Apartheid ( , especially South African English: , ; , ) was a system of institutionalised racial segregation that existed in South Africa and South West Africa (now Namibia) from 1948 to the early 1990s. It was characterised by an ...
by serving the USSR. According to Gerhardt, he deliberately attempted to sow confusion in the trial by stating in his defence that he had spied for an unnamed third country that was not hostile to South Africa. His first wife described him as a "traditional apartheid-accepting South African"; he had told her that he wanted revenge against the South African government for
interning his father, a
Nazi
Nazism (), formally named National Socialism (NS; , ), is the far-right politics, far-right Totalitarianism, totalitarian socio-political ideology and practices associated with Adolf Hitler and the Nazi Party (NSDAP) in Germany. During H ...
sympathizer, during
World War II
World War II or the Second World War (1 September 1939 – 2 September 1945) was a World war, global conflict between two coalitions: the Allies of World War II, Allies and the Axis powers. World War II by country, Nearly all of the wo ...
. Ruth Gerhardt claimed in her defence that she thought he was a double agent working for South Africa. Judge
George Munnik sentenced him to life imprisonment in December 1983, while his wife Ruth received a 10-year sentence for acting as a courier. The judge said that he would have passed the death sentence on Gerhardt that the prosecution sought if the information he had passed to the Soviet Union had led to the death of a South African soldier.
Ruth Gerhardt served her sentence together with
Barbara Hogan
Barbara Anne Hogan (born 28 February 1952) is a former Minister of Health and of Public Enterprises in the Cabinet of South Africa.
Early life
Hogan attended St Dominic's Catholic School for Girls, Boksburg, and gained a degree at the Uni ...
and other anti-apartheid dissidents. In 1988, she attempted to gain her freedom by renouncing violence, and thereby take advantage of an offer made by
PW Botha to political prisoners like
Nelson Mandela
Nelson Rolihlahla Mandela ( , ; born Rolihlahla Mandela; 18 July 1918 – 5 December 2013) was a South African Internal resistance to apartheid, anti-apartheid activist and politician who served as the first president of South Africa f ...
, however the request was turned down by
Justice Goldstone.
Dieter Gerhardt was one of the imprisoned spies who was mooted for inclusion in a 1989 East-West prisoner exchange amongst a number of countries that did not materialise. In 1990 when
FW de Klerk
Frederik Willem de Klerk ( , ; 18 March 1936 – 11 November 2021) was a South African politician who served as the seventh and final state president of South Africa from 1989 to 1994 and as deputy president alongside Thabo Mbeki under Preside ...
unbanned organisations such as the
ANC and released political prisoners like
Nelson Mandela
Nelson Rolihlahla Mandela ( , ; born Rolihlahla Mandela; 18 July 1918 – 5 December 2013) was a South African Internal resistance to apartheid, anti-apartheid activist and politician who served as the first president of South Africa f ...
, Gerhardt was not one of those who was freed. He was visited in prison on 22 January 1992 by a delegation from the ANC, who were seeking information regarding the
SADF
The South African Defence Force (SADF) (Afrikaans: ''Suid-Afrikaanse Weermag'') comprised the armed forces of South Africa from 1957 until 1994. Shortly before the state reconstituted itself as a republic in 1961, the former Union Defence Fo ...
that might have assisted them in
CODESA negotiations with the
National Party government. Gerhardt was released in August 1992 following his application for release, political pressure in South Africa and an appeal by Russian premier
Boris Yeltsin
Boris Nikolayevich Yeltsin (1 February 1931 – 23 April 2007) was a Soviet and Russian politician and statesman who served as President of Russia from 1991 to 1999. He was a member of the Communist Party of the Soviet Union (CPSU) from 1961 to ...
to South African President
FW de Klerk
Frederik Willem de Klerk ( , ; 18 March 1936 – 11 November 2021) was a South African politician who served as the seventh and final state president of South Africa from 1989 to 1994 and as deputy president alongside Thabo Mbeki under Preside ...
when the latter visited Moscow after the
dissolution of the Soviet Union
The Soviet Union was formally dissolved as a sovereign state and subject of international law on 26 December 1991 by Declaration No. 142-N of the Soviet of the Republics of the Supreme Soviet of the Soviet Union. Declaration No. 142-Н of ...
. Former
Minister of Defence
A ministry of defence or defense (see spelling differences), also known as a department of defence or defense, is the part of a government responsible for matters of defence and military forces, found in states where the government is divid ...
Magnus Malan
General Magnus André de Merindol Malan (30 January 1930 – 18 July 2011) was a South African military figure and politician during the last years of apartheid in South Africa. He served respectively as Minister of Defence in the cabinet of ...
said that the former spy's release was a precondition to the restoration of diplomatic ties and the signing of a trade agreement between South Africa and the
Russian Federation
Russia, or the Russian Federation, is a country spanning Eastern Europe and North Asia. It is the list of countries and dependencies by area, largest country in the world, and extends across Time in Russia, eleven time zones, sharing Borders ...
.
Gerhardt moved to
Basel
Basel ( ; ), also known as Basle ( ), ; ; ; . is a city in northwestern Switzerland on the river Rhine (at the transition from the High Rhine, High to the Upper Rhine). Basel is Switzerland's List of cities in Switzerland, third-most-populo ...
,
Switzerland
Switzerland, officially the Swiss Confederation, is a landlocked country located in west-central Europe. It is bordered by Italy to the south, France to the west, Germany to the north, and Austria and Liechtenstein to the east. Switzerland ...
, following in the footsteps of his Swiss wife Ruth Gerhardt, who was released in 1990 following a request from the Swiss government. He stated upon his release that: "I did not feel like a traitor or someone who was betraying his colleagues. I was a political activist fighting the evil regime of apartheid. It was nothing personal." Gerhardt was subsequently granted amnesty in 1999 by the
Truth and Reconciliation Commission
A truth commission, also known as a truth and reconciliation commission or truth and justice commission, is an official body tasked with discovering and revealing past wrongdoing by a government (or, depending on the circumstances, non-state ac ...
, and his rank of
rear admiral
Rear admiral is a flag officer rank used by English-speaking navies. In most European navies, the equivalent rank is called counter admiral.
Rear admiral is usually immediately senior to commodore and immediately below vice admiral. It is ...
restored.
Nuclear weapons controversy

He claimed that the United States and the Soviet Union met in 1976 to discuss South Africa's
nuclear weapons programme, and that the Soviets proposed a pre-emptive strike on the
Pelindaba plant.
In February 1994, he told Des Blow of the ''Johannesburg City Press'' that the
Vela incident
The Vela incident was an unidentified double flash of light detected by an American Vela Hotel satellite on 22 September 1979 near the South African territory of Prince Edward Islands in the Indian Ocean, roughly midway between Africa and Antar ...
was the result of a joint
Israel
Israel, officially the State of Israel, is a country in West Asia. It Borders of Israel, shares borders with Lebanon to the north, Syria to the north-east, Jordan to the east, Egypt to the south-west, and the Mediterranean Sea to the west. Isr ...
i-South African
nuclear test
Nuclear weapons tests are experiments carried out to determine the performance of nuclear weapons and the effects of their explosion. Nuclear testing is a sensitive political issue. Governments have often performed tests to signal strength. Bec ...
, code-named ''Operation Phoenix''. He stated that he had no official knowledge of the alleged test, but was not ready to provide further details. In a subsequent interview with
David Albright
David Albright (born 1948) is an American physicist and a weapons expert who is the founder of the non-governmental Institute for Science and International Security (ISIS), its current president, and author of several books on proliferation o ...
in March 1994, he stated that no South African warships had been involved, but declined to provide further details.
''
Popular Mechanics
''Popular Mechanics'' (often abbreviated as ''PM'' or ''PopMech'') is a magazine of popular science and technology, featuring automotive, home, outdoor, electronics, science, do it yourself, and technology topics. Military topics, aviation an ...
'' contends that the mystery surrounding the incident would finally have been resolved if Gerhardt were a more credible source, while other authors suggest that newly declassified documents increase the credibility of his claims.
See also
*
John Anthony Walker
John Anthony Walker Jr. (July 28, 1937 – August 28, 2014) was a United States Navy chief warrant officer and communications specialist convicted of spying for the Soviet Union from 1967 to 1985 and sentenced to life in prison.
In late ...
Further reading
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Notes
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External links
Dieter GerhardtTranslation
{{DEFAULTSORT:Gerhardt, Dieter
German emigrants to South Africa
Naturalised citizens of South Africa
Military personnel from Berlin
South African people of German descent
South African Navy personnel
South African spies for the Soviet Union
South African people convicted of spying for the Soviet Union
1935 births
Living people
Israel–South Africa relations
GRU officers
1983 in international relations
1983 in South Africa
South African prisoners sentenced to life imprisonment
People convicted of treason against South Africa
Prisoners sentenced to life imprisonment by South Africa
Opposition to apartheid in South Africa
Cold War military history of South Africa
Naval attachés
White South African anti-apartheid activists
South African anti-apartheid activists