The Fourth International (FI) was a political international established in France in 1938 by Leon Trotsky and his supporters, having been expelled from the Soviet Union and the Communist International.
The Trotskyist Fraction – Fourth International (TF-FI) is a political international of Trotskyist political organizations that claim to adhere to the political legacy of the Fourth International.
The League for Socialist Action (LSA) was the premier Trotskyist organization in Canada for much of the 20th century. Throughout its history the LSA went through many different names and iterations. In chronological order it was known as: 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 League for Socialist Action.
Jack Barnes is an American communist and the National Secretary of the Socialist Workers Party. Barnes was elected the party's national secretary in 1972, replacing the retiring Farrell Dobbs. He joined the SWP in the early 1960s as a student at Carleton College in Minnesota and quickly became a leading member of the party's youth wing. From the 1990s to the present, Barnes has directed his party to support the governments of North Korea and Equatorial Guinea; has instructed the party to abstain from antiwar or anti-racist activism; and in January 2016 lent his support to the occupation of federal lands, in Oregon, by militia movement members. Barnes was a key advocate of the party's "turn to industry" in the 1970s, its exit from the Fourth International in the 1980s and its orientation towards the Cuban Communist Party in the 1990s.
Socialist Challenge was a Trotskyist group in English Canada formed by former members of the Revolutionary Workers League/Ligue Ouvrière Révolutionnaire who were expelled or resigned when the RWL moved away from Trotskyism in the early 1980s.
The International Revolutionary Marxist Tendency was an international Marxist group based in France led by Michel Pablo, also known as Michael Raptis, the former secretary of the Trotskyist Fourth International. It resulted as a regroupment of activists expelled from the Fourth International over their opposition to the 1962 re-unification process with the so-called "International Committee of the Fourth International"(ICFI) which had split from the Fourth International in 1953 over the question of entrism sui generis, a form of entryism which involved eschewing overt organisation building efforts in favour of long term participation in social democratic and communist parties. The re-unification process was rushed while Pablo was imprisoned in the Netherlands for illegal activities in support of the Algerian revolution.
The Workers League was a Trotskyist political party in Ireland.
The International Committee of the Fourth International (ICFI) is a public faction of the Fourth International founded in 1953. Today two Trotskyist internationals claim to be the continuations of the ICFI; 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.
The Fourth International (FI), founded in 1938, is a Trotskyist international.
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 Socialist League is a small Trotskyist organisation in the UK.
The International Communist League (Fourth Internationalist) abbreviated as ICL(FI), earlier known as the international Spartacist tendency (iSt) 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.
Michel Pablo was the pseudonym of Michalis N. Raptis, a Trotskyist leader of Greek origin.
The Internationalist Communist Organisation was a Trotskyist political party in France. Its successor was the Internationalist Communist Current of the Workers Party.
Nahuel Moreno was a Trotskyist leader from Argentina. Moreno was active in the Trotskyist movement from 1942 until his death.
Pierre Lambert was a French Trotskyist leader, who for many years acted as the central leader of the French Courant Communiste Internationaliste (CCI) which founded the Parti des Travailleurs.
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.
Michael Banda, born Michael Alexander Van Der Poorten, was a Sri Lankan communist activist best known as the General Secretary of the British Workers Revolutionary Party.
