In
politics
Politics () is the set of activities that are associated with decision-making, making decisions in social group, groups, or other forms of power (social and political), power relations among individuals, such as the distribution of Social sta ...
, a defector is a person who gives up
allegiance to one state in exchange for allegiance to another, changing sides in a way which is considered illegitimate by the first state. More broadly, defection involves abandoning a person, cause, or doctrine to which one is bound by some tie, as of allegiance or duty.
This term is also applied, often pejoratively, to anyone who switches loyalty to another
religion
Religion is a range of social system, social-cultural systems, including designated religious behaviour, behaviors and practices, morals, beliefs, worldviews, religious text, texts, sanctified places, prophecies, ethics in religion, ethics, or ...
,
sports team,
political party
A political party is an organization that coordinates candidates to compete in a particular area's elections. It is common for the members of a party to hold similar ideas about politics, and parties may promote specific political ideology, ...
, or other rival faction. In that sense, the defector is often considered a
traitor by their original side.
International politics

The physical act of defection is usually in a manner which violates the laws of the nation or political entity from which the person is seeking to depart. By contrast, mere changes in
citizenship
Citizenship is a membership and allegiance to a sovereign state.
Though citizenship is often conflated with nationality in today's English-speaking world, international law does not usually use the term ''citizenship'' to refer to nationalit ...
, or working with allied militia, usually do not violate any law(s).
For example, in the 1950s,
East Germans were increasingly prohibited from traveling to the western
Federal Republic of Germany where they were automatically regarded as citizens according to
Exclusive mandate. The
Berlin Wall (1961) and fortifications along the
Inner German border (1952 onward) were erected by the Communist
German Democratic Republic to enforce the policy. When people tried to "defect" from the GDR they were to be shot on sight. Several hundred people
were killed along that border in their
Republikflucht attempt. Official crossings did exist, but permissions to leave temporarily or permanently were seldom granted. On the other hand, the GDR citizenship of some "inconvenient" East Germans was revoked, and they had to leave their home on short notice against their will. Others, like singer
Wolf Biermann, were prohibited from returning to the GDR.
During the
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 ...
, the many people illegally emigrating from the
Soviet Union
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 ...
or
Eastern Bloc to
the West were called defectors. Westerners defected to the Eastern Bloc as well, often to avoid prosecution as spies. Some of the more famous cases were British spy
Kim Philby, who defected to the USSR to avoid exposure as a
KGB
The Committee for State Security (, ), abbreviated as KGB (, ; ) was the main security agency of the Soviet Union from 1954 to 1991. It was the direct successor of preceding Soviet secret police agencies including the Cheka, Joint State Polit ...
mole, and
22 Allied POWs (one Briton and twenty-one Americans) who declined repatriation after the
Korean War
The Korean War (25 June 1950 – 27 July 1953) was an armed conflict on the Korean Peninsula fought between North Korea (Democratic People's Republic of Korea; DPRK) and South Korea (Republic of Korea; ROK) and their allies. North Korea was s ...
, electing to remain in China.
When an individual leaves their country and provides information to a foreign intelligence service, they are considered a
HUMINT source defector. In some cases, defectors remain in the country or with the political entity they were against, functioning as a
defector in place. Intelligence services are always concerned when debriefing defectors with the possibility of a
fake defection.
Entire militaries can defect and choose not to follow orders from a state's leaders. During the
Arab Spring protests, militaries in Egypt and Tunisia refused orders to fire upon protesters or use other methods to disperse them.
The decision to defect can be driven by the desire to prevent insubordination: if a military leader judges that lower officers will disobey orders to fire upon protesters, they could be more likely to defect.
Notable defectors
Artists
*
Paquito D'Rivera, Cuban saxophonist and clarinetist, who defected to the United States in 1980.
*
Mikhail Baryshnikov,
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 ...
(Russian) dancer, who defected to
Canada
Canada is a country in North America. Its Provinces and territories of Canada, ten provinces and three territories extend from the Atlantic Ocean to the Pacific Ocean and northward into the Arctic Ocean, making it the world's List of coun ...
in 1974, while in
Toronto
Toronto ( , locally pronounced or ) is the List of the largest municipalities in Canada by population, most populous city in Canada. It is the capital city of the Provinces and territories of Canada, Canadian province of Ontario. With a p ...
, touring with the
Kirov Ballet. He later moved to the
United States
The United States of America (USA), also known as the United States (U.S.) or America, is a country primarily located in North America. It is a federal republic of 50 U.S. state, states and a federal capital district, Washington, D.C. The 48 ...
.
*
Natalia Makarova, Soviet (Russian) dancer, who defected while in London in 1970.
*
Georgi Markov, Bulgarian author, who defected in 1968, eventually settling in London, England, later assassinated.
*
Rudolf Nureyev, Soviet (Russian) dancer, who defected while in
Paris
Paris () is the Capital city, capital and List of communes in France with over 20,000 inhabitants, largest city of France. With an estimated population of 2,048,472 residents in January 2025 in an area of more than , Paris is the List of ci ...
touring with the
Kirov Ballet in 1961.
*
George Balanchine, Georgian
choreographer, who defected to the
Weimar Republic
The Weimar Republic, officially known as the German Reich, was the German Reich, German state from 1918 to 1933, during which it was a constitutional republic for the first time in history; hence it is also referred to, and unofficially proclai ...
in 1924.
*
Arturo Sandoval, Cuban trumpeter, pianist, and composer, who defected to the United States in 1990.
*
Jan Sobota, Czech fine bookbinder, who defected to Switzerland in 1982, and settled in the United States in 1984.
Athletes
*
Guillermo Rigondeaux
Guillermo Rigondeaux Ortiz (; born 30 September 1980) is a Cuban professional boxer. Who held the unified WBA (Super), WBO and '' Ring'' magazine super bantamweight titles between 2013 and 2017, and the WBA (Regular) bantamweight title fro ...
, Cuban
professional boxer, who defected to the United States in 2009.
*
Aroldis Chapman, Cuban
baseball pitcher, who defected to Andorra in 2009 before signing a
Major League Baseball
Major League Baseball (MLB) is a professional baseball league composed of 30 teams, divided equally between the National League (baseball), National League (NL) and the American League (AL), with 29 in the United States and 1 in Canada. MLB i ...
contract in 2010.
*
Ernst Degner, East German
Motorcycle racer, who defected to West Germany in 1961
*
José Fernández, Cuban
baseball player, who defected to the United States in 2008.
*
Lutz Eigendorf, an East German
football player for
BFC Dynamo who defected to
West Germany
West Germany was the common English name for the Federal Republic of Germany (FRG) from its formation on 23 May 1949 until German reunification, its reunification with East Germany on 3 October 1990. It is sometimes known as the Bonn Republi ...
in 1979.
*
Orlando Hernandez, Cuban
baseball pitcher, who defected to the United States in 1997.
*
Nadia Comăneci, Romanian Olympic gymnast, who defected to the United States in 1989.
*
Martina Navratilova, Czechoslovak tennis player, who defected to the United States in 1975.
*
Alexander Mogilny, Soviet (Russian)
ice hockey
Ice hockey (or simply hockey in North America) is a team sport played on ice skates, usually on an Ice rink, ice skating rink with Ice hockey rink, lines and markings specific to the sport. It belongs to a family of sports called hockey. Tw ...
forward, who defected to the United States in 1988. He was the first Soviet player to defect to play in the
NHL.
*
Béla Károlyi and his wife
Márta Károlyi,
Romania
Romania is a country located at the crossroads of Central Europe, Central, Eastern Europe, Eastern and Southeast Europe. It borders Ukraine to the north and east, Hungary to the west, Serbia to the southwest, Bulgaria to the south, Moldova to ...
n
gymnastics
Gymnastics is a group of sport that includes physical exercises requiring Balance (ability), balance, Strength training, strength, Flexibility (anatomy), flexibility, agility, Motor coordination, coordination, artistry and endurance. The movem ...
coaches (of
Nadia Comăneci and
Mary Lou Retton among others), who defected to the United States in 1981.
*
Osvaldo Alonso, Cuban
soccer player, who defected to the United States in 2007.
*
José Abreu, Cuban baseball player, who defected to the United States in 2013.
*
Kimia Alizadeh, Iranian
taekwondo martial artist, who defected to the Netherlands in 2020.
*
César Prieto, Cuban baseball player, who defected to the United States in 2021.
*
Krystsina Tsimanouskaya, Belarus sprinter, who defected to Poland in 2021.
Military
*
Larry Allen Abshier, the first of six American soldiers to defect to North Korea between the years 1962–1982. He died in 1983 from a heart attack while residing in
Pyongyang
Pyongyang () is the Capital city, capital and largest city of North Korea, where it is sometimes labeled as the "Capital of the Revolution" (). Pyongyang is located on the Taedong River about upstream from its mouth on the Yellow Sea. Accordi ...
.
*
Benedict Arnold‚ a colonial general who during the
American Revolutionary War
The American Revolutionary War (April 19, 1775 – September 3, 1783), also known as the Revolutionary War or American War of Independence, was the armed conflict that comprised the final eight years of the broader American Revolution, in which Am ...
defected to the
British Army
The British Army is the principal Army, land warfare force of the United Kingdom. the British Army comprises 73,847 regular full-time personnel, 4,127 Brigade of Gurkhas, Gurkhas, 25,742 Army Reserve (United Kingdom), volunteer reserve perso ...
.
*
Riad al-Asaad, founder of the
Free Syrian Army and the entire Tlass Family during the
Syrian civil war.
*
Viktor Belenko, a
Soviet Air Force lieutenant who flew a
MiG-25 fighter to Japan in 1976 and gained
political asylum in the United States.
*
James Joseph Dresnok, a
US Army private who defected to
North Korea
North Korea, officially the Democratic People's Republic of Korea (DPRK), is a country in East Asia. It constitutes the northern half of the Korea, Korean Peninsula and borders China and Russia to the north at the Yalu River, Yalu (Amnok) an ...
by sneaking across the Demilitarized Zone in 1962. He would live the remainder of his life in the DPRK until his death in 2016.
*
Igor Gouzenko, a Soviet
cipher
In cryptography, a cipher (or cypher) is an algorithm for performing encryption or decryption—a series of well-defined steps that can be followed as a procedure. An alternative, less common term is ''encipherment''. To encipher or encode i ...
clerk who defected to Canada and released information regarding Soviet espionage activities in western society. Credited as one of the triggering factors for the beginning of the Cold War.
*
No Kum-Sok (later Kenneth Rowe) is known for having been a
lieutenant
A lieutenant ( , ; abbreviated Lt., Lt, LT, Lieut and similar) is a Junior officer, junior commissioned officer rank in the armed forces of many nations, as well as fire services, emergency medical services, Security agency, security services ...
in the
North Korean Air Force during the
Korean War
The Korean War (25 June 1950 – 27 July 1953) was an armed conflict on the Korean Peninsula fought between North Korea (Democratic People's Republic of Korea; DPRK) and South Korea (Republic of Korea; ROK) and their allies. North Korea was s ...
who defected to
South Korea
South Korea, officially the Republic of Korea (ROK), is a country in East Asia. It constitutes the southern half of the Korea, Korean Peninsula and borders North Korea along the Korean Demilitarized Zone, with the Yellow Sea to the west and t ...
. On September 21, 1953, he flew his
MiG-15 to the
Kimpo Air Base in South Korea, claiming that he wanted to get away from the "red deceit" and is often associated with
Operation Moolah.
[Factsheets: Story of the MiG-15]
." National Museum of the United States Air Force.
* , former Russian military pilot-navigator of the Mi-8AMTSh military transport helicopter. During the Russian-Ukrainian War, on August 9, 2023, he flew across the front line to the Ukrainian side as part of the special
Operation Synytsia, prepared by the Main Intelligence Directorate of the Ukrainian Defense Ministry.
*
Genrikh Lyushkov, the
NKVD
The People's Commissariat for Internal Affairs (, ), abbreviated as NKVD (; ), was the interior ministry and secret police of the Soviet Union from 1934 to 1946. The agency was formed to succeed the Joint State Political Directorate (OGPU) se ...
chief in the
Russian Far East
The Russian Far East ( rus, Дальний Восток России, p=ˈdalʲnʲɪj vɐˈstok rɐˈsʲiɪ) is a region in North Asia. It is the easternmost part of Russia and the Asia, Asian continent, and is coextensive with the Far Easte ...
, defected to
Manchukuo in 1938 under the
Great Purge and then cooperated with the
Imperial Japanese Army.
*
Ivan Mazepa,
Ukrainian Hetman of Zaporizhian Host from 1687–1708 who defected from the
Russian Empire
The Russian Empire was an empire that spanned most of northern Eurasia from its establishment in November 1721 until the proclamation of the Russian Republic in September 1917. At its height in the late 19th century, it covered about , roughl ...
to the
Swedish Empire during the
Battle of Poltava of the
Great Northern War.
*
Lee Harvey Oswald, the later
assassin of President John F. Kennedy had claimed defection to the
Soviet Union
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 ...
in October 1959 but was ultimately refused citizenship and returned to the United States in 1962.
*
Ion Mihai Pacepa, a
Romania
Romania is a country located at the crossroads of Central Europe, Central, Eastern Europe, Eastern and Southeast Europe. It borders Ukraine to the north and east, Hungary to the west, Serbia to the southwest, Bulgaria to the south, Moldova to ...
n
Securitate general who defected to the United States from the
Socialist Republic of Romania in 1978.
*
Matiur Rahman, a Pakistani/Bangladeshi pilot who in 1971 attempted to defect with a T-33 along with confidential Pakistani war plans to India to join the
Bangladesh Liberation War
The Bangladesh Liberation War (, ), also known as the Bangladesh War of Independence, was an War, armed conflict sparked by the rise of the Bengali nationalism, Bengali nationalist and self-determination movement in East Pakistan, which res ...
. However his plan was foiled by Flt.Lt
Rashid Minhas who crashed the plane after a brief struggle for control over the aircraft. The plane crashed some 50 Kilometres from the border.
*
Leamsy Salazar, former
lieutenant colonel of Bolivarian Navy of Venezuela and head of security detail for Hugo Chávez, defected to United States in December 2014.
* Heng Samrin, a top-brass military figure in Democratic Kampuchea defected to Vietnam during the Khmer Rouge purges of the Eastern Zone after considering the fate of So Phim, his superior in command.
* Travis King, a US Army private who defected to North Korea, possibly to avoid facing a dishonorable discharge and legal charges, in 2023. North Korea would later return him to American custody.
Politics
* Guy Burgess, British diplomat and member of the Cambridge Five, defected to the Soviet Union in 1951.
* Donald Maclean (spy), Donald Maclean, British diplomat and member of the Cambridge Five, defected to the Soviet Union in 1951.
*
Kim Philby, British intelligence officer and member of the Cambridge Five, defected to the Soviet Union in 1963.
* Viktor Suvorov (born 1947), Russian writer and former Soviet military intelligence officer who defected to the United Kingdom in 1978.
* Thae Yong-ho, a former
North Korea
North Korea, officially the Democratic People's Republic of Korea (DPRK), is a country in East Asia. It constitutes the northern half of the Korea, Korean Peninsula and borders China and Russia to the north at the Yalu River, Yalu (Amnok) an ...
n diplomat for Britain. At an unknown date Thae defected from North Korea for his family, because he "didn't want his children, who were used to life of freedom, to suffer life of oppression". Being one of North Korea's elite, for the nation he was the highest profile defection since No Kum-sok (above) in 1953. He was elected to the
South Korea
South Korea, officially the Republic of Korea (ROK), is a country in East Asia. It constitutes the southern half of the Korea, Korean Peninsula and borders North Korea along the Korean Demilitarized Zone, with the Yellow Sea to the west and t ...
n National Assembly (South Korea), National Assembly in 2020 South Korean legislative election, 2020 for the United Future Party, representing the Gangnam A district of Seoul.
* Vladimir Petrov (diplomat), Vladimir Petrov - Soviet diplomat who defected to Australia in 1954.
Others
* Viktor Korchnoi, Russian chess Grandmaster, defected in Amsterdam in 1976.
* Walter Polovchak, minor, defected to the United States in 1980 at 12. He and his parents moved to the United States from Ukraine SSR, Soviet Ukraine in 1980 but later that year his parents decided to move back to Ukraine. He did not wish to return with them and was the subject of a five-year struggle to stay permanently. He won the right to permanent sanctuary in 1985 upon turning 18.
* The crew of Capture of the Tuapse, oil tanker Tuapse, held hostage in 1954 by the government of Taiwan during the White Terror (Taiwan), White Terror. An unusual case of forced defection, where the crew were forced to defect to the United States to secure their release. Those who refused were subjected to various forms of torture, while those who subsequently retracted their defection and returned to the Soviet Union were sentenced for treason but later pardoned. All surviving crew were released in 1988.
* , in order to defect from Russia in 2021, swam from Kunashir Island to Hokkaido, a distance of about 20 kilometers, in 23 hours.
* Yeonmi Park is a North Korean defectors, North Korean defector and activist whose family fled from North Korea to China in 2007.
See also
* Apostasy
* Desertion
* Dissident
* Eastern Bloc emigration and defection
**List of Soviet and Eastern Bloc defectors
**List of baseball players who defected from Cuba
**North Korean defectors
**Nevozvrashchentsy
* List of Cold War pilot defections
* List of Western Bloc defectors
**Martin and Mitchell defection
**List of American and British defectors in the Korean War
**South Korean defectors
* List of Iranian defectors
* List of Syrian defectors
*Prisoner's dilemma
* Religious disaffiliation
* Treason
* Turncoat
* Party switching
References
Further reading
* Brook-Shepherd, Gordon. ''The storm petrels: the first Soviet defectors, 1928-1938''. HarperCollins, 1977).
* Hänni, Adrian, and Miguel Grossmann. "Death to traitors? The pursuit of intelligence defectors from the Soviet Union to the Putin era." ''Intelligence and National Security'' (2020): 1-21.
* Krasnov, Vladislav. ''Soviet defectors: The KGB wanted list'' (Hoover Press, 2018).
* Riehle, Kevin P. "The Defector Balance Sheet: Westbound Versus Eastbound Intelligence Defectors from 1945 to 1965." ''International Journal of Intelligence and CounterIntelligence'' 33.1 (2020): 68-96.
* Riehle, Kevin P
"Early Cold War evolution of British and US defector policy and practice" ''Cold War History'' 19.3 (2019): 343-361. online free
* About Oleg Penkovsky.
**
* Scott, Erik R. (2023). ''Defectors: How the Illicit Flight of Soviet Citizens Built the Borders of the Cold War World''. Oxford University Press. .
* Tromly, Benjamin
"Ambivalent heroes: Russian defectors and American power in the early Cold War" ''Intelligence and National Security'' 33.5 (2018): 642-658.
External links
Famous Defectors - slideshow by ''Life magazine''
{{Authority control
Defection,
Military terminology
Political terminology
Spies by role