Alan Thornett is a British Trotskyist.
The Workers Socialist League (WSL) was a Trotskyist group in Britain. The group was formed by Alan Thornett and other members of the Workers Revolutionary Party (WRP) after their expulsion from that group in 1974.
The Workers Internationalist League was a Trotskyist group in Britain founded in the summer of 1983 by the Internationalist Faction of the Workers Socialist League. It was the British affiliate of the Trotskyist International Liaison Committee until that body was renamed the International Trotskyist Committee.
The League for Socialist Action was a Trotskyist organization in Canada. It was known by several names throughout its history, including the International Left Opposition (Trotskyist) of Canada, the Workers Party of Canada, the Socialist Policy Group, the Socialist Workers League, the Revolutionary Workers Party, The Club, the Socialist Education League and the Socialist Information Centre.
The Socialist Labour Group was a Trotskyist group in Britain between 1979 and 1989.
The Spartacist League of Britain is a Trotskyist political organisation in Britain. It is the British section of the International Communist League.
The International League for the Reconstruction of the Fourth International, usually known as the Fourth International, was a Trotskyist political international led by Michel Varga.
Under a variety of names and within a number of organizations over at least 17 years, the group around Harry Turner, or Turnerites was a presence within Trotskyism in the United States.
The Revolutionary Workers League is a small Trotskyist group formed in the United States in the late 1970s. The RWL still has about 20 active members.
The International Socialist Group (ISG) was a Trotskyist organisation in Britain. It was the British section of the Fourth International (FI) until 2009 when it dissolved into Socialist Resistance.
The International Committee of the Fourth International (ICFI) is the name of two Trotskyist internationals; one with sections named Socialist Equality Party which publishes the World Socialist Web Site, and another linked to the Workers Revolutionary Party in the UK.
Thomas Gerard Healy was a political activist, a co-founder of the International Committee of the Fourth International and the leader of the Socialist Labour League and later the Workers Revolutionary Party.
The International Marxist Group (IMG) was a Trotskyist group in Britain between 1968 and 1982. It was the British Section of the Fourth International. It had around 1,000 members and supporters in the late 1970s. In 1980, it had 682 members; by 1982, when it changed its name to the Socialist League, membership had fallen to 534.
The Fourth International (FI), founded in 1938, is a Trotskyist international. In 1963, following a ten-year schism, the majorities of the two public factions of the Fourth International, the International Secretariat and the International Committee, reunited, electing a United Secretariat of the Fourth International. In 2003, the United Secretariat was replaced by an Executive Bureau and an International Committee, although some other Trotskyists still refer to the organisation as the USFI or USec.
The French Turn was the name given to the entry between 1934 and 1936 of the French Trotskyists into the French Section of the Workers' International. The French Turn was repeated by Trotskyists in other countries during the 1930s.
The International Communist League (Fourth Internationalist), earlier known as the International Spartacist tendency is a Trotskyist international. Its largest constituent party is the Spartacist League (US). There are smaller sections of the ICL (FI) in Mexico, Canada, France, Germany, Ireland, Italy, Japan, South Africa, Australia, Greece and the United Kingdom.
The Internationalist Communist Organisation was a Trotskyist political party in France. Its successor was the Internationalist Communist Current of the Workers Party.
Orthodox Trotskyism is a branch of Trotskyism which aims to adhere more closely to the philosophy, methods and positions of Leon Trotsky and the early Fourth International, Vladimir Lenin and Karl Marx than other avowed Trotskyists.
