List of Trotskyist internationals#Defunct

This is a list of Trotskyist internationals. It includes all of the many political internationals which self-identify as Trotskyist.

Of the organizations listed, two claim to be the original Fourth International founded in 1938: the reunified Fourth International (USFI) and the International Committee of the Fourth International (ICFI). The Fourth International split into two factions 1953 over the question of historic perspective, with the International Secretariat (ISFI) turning in favour of deep entryism and supporting petty-bourgeois nationalist movements in less developed countries, and the International Committee (ICFI) upholding the need to form revolutionary parties. The factions reunited in 1963 resulting in the formation of reunified Fourth International (USFI), while parts of the ICFI did not. Both the USFI and ICFI went on to fragment further, giving rise to several new internationals.

Certain organizations which claim to be Trotskyist make no attempt to claim any relationship to the Fourth International in an organizational sense and argue that it no longer exists. Some claim to represent a continuity from the Fourth International or to have re-established it: for example the Fourth International (ICR) International Centre/Center of Reconstruction, also known as the FI (La Verité), also calls itself the "Fourth International".

The various organizations listed here range in size from those having thousands of adherents in dozens of countries to tendencies which can barely claim a dozen members in three or four countries.

List of internationals

The largest internationals in terms of membership are indicated in bold.

= Active =

== Internationals that emerged from the Fourth International (USFI) ==

International Workers League – Fourth International (IWL-FI), founded by former members of the USFI in 1982.{{cite web |date=14 September 2017 |title=IWL – FI – International Workers League – Fourth International – IWL – FI |url=http://www.litci.org/en/ |website=www.litci.org}}
Trotskyist Fraction – Fourth International (TF-FI), founded by expelled members of the IWL-FI in 1988{{cite web |title=Trotskyist Fraction Fourth International |url=http://www.ft-ci.org/?lang=en# |url-status=dead |archive-url=https://web.archive.org/web/20180220033058/http://www.ft-ci.org/?lang=en |archive-date=2018-02-20 |access-date=2018-09-20 |publisher=Ft-ci.org}}
International Workers' Unity – Fourth International (IWU-FI), split from IWL-FI in 1997.{{Cite web|date=2021-03-14|title=Home|url=https://uit-ci.org/|access-date=2021-08-24|website=Uit-Ci|language=es-ES}}
International Leninist Trotskyist Fraction (ILTF), split from the TF-FI in 1998.{{Cite web|url=https://www.flti-ci.org/ingles/editrok/ebooks/tbi/tbi-platform-english-dec2019.pdf|title=1998 Platform of the Internationalist Bolshevik Tendency (TBI) against a current that liquidates Trotskyism - Our split with the PTS|website=www.flti-ci.org}}{{Cite web|title=.::: FLTI :::.|url=http://www.flti-ci.org/index_eng.html|access-date=2021-09-13|website=www.flti-ci.org}}
Tendency for the Reconstruction of the Fourth International, formed by expelled members of the TF-FI in 2006.{{Cite web|title= Quienes somos |url=https://cor-digital.org/qui%C3%A9nes-somos.html}}{{Cite web|title=Home - TRCI|url=http://trci-web.org/en/|access-date=2021-08-21|website=trci-web.org}}
Committee for Revolutionary International Regroupment (CRIR), founded by groups originating from the USFI and IWL-FI{{Cite web|url=https://socialism.com/committee-revolutionary-international-regroupment-crir/|title=Committee for Revolutionary International Regroupment (CRIR)|website=Freedom Socialist Party|language=en-US|access-date=2020-04-19}}
Committee for a Workers' International (CWI) - claims to be refoundation of the defunct Committee for a Workers' International (1974), which was formed by former members of the USFI, after 2019 split.{{cite news |title=Refounding the Committee for a Workers' International on the basis of a Trotskyist programme and method |url=https://www.socialistworld.net/2019/07/25/refounding-the-committee-for-a-workers-international-on-the-basis-of-a-trotskyist-programme-and-method/ |access-date=28 October 2020 |work=socialistworld.net |publisher=Committee for a Workers' International |date=25 July 2019}}
Revolutionary Communist International, split from CWI in 1992. Previously named International Marxist Tendency (IMT) (2004–2024), and the Committee for a Marxist International (1992–2004){{cite web |title=In Defense of Marxism |date=12 February 2024 |url=https://www.marxist.com/it-is-time-to-launch-a-revolutionary-communist-international.htm}}
International Revolutionary Left (IRL), split from CWI in 2019.{{cite web |title=Founding Congress of the International Revolutionary Left |url=https://izquierdarevolucionaria.net/index.php/english/11671-founding-congress-of-the-international-revolutionary-left |work=Izquierda Revolucionaria |access-date=5 February 2020 |language=es-ES |date=29 July 2019}}
International Socialist Alternative, claims to be successor to the defunct Committee for a Workers' International (1974) after 2019 split.{{cite news |last1=INTERNATIONAL SOCIALIST ALTERNATIVE EDITORIAL BOARD |title=International Socialist Alternative Launched |url=http://socialistalternative.ca/history-and-theory/cwi/international-socialist-alternative-launched/ |access-date=28 October 2020 |work=International Socialist Alternative |publisher=International Socialist Alternative |date=8 February 2020}}
Internationalist Standpoint (IS), split from International Socialist Alternative in 2022.{{Cite web|title=Launching Internationalist Standpoint|url=https://www.internationaliststandpoint.org/launching-internationalist-standpoint/|website=internationaliststandpoint.org|date=31 January 2022 }}
International Socialist Tendency (IST), founded by expelled members of the original Fourth International in the 1950s{{cite web |url=http://internationalsocialists.org/ |title=International Socialist Tendency |website=internationalsocialists.org}}
League for the Fifth International (L5I), founded by expelled members of the IST.{{cite web |title=League for the Fifth International – Fighting for a new world party of socialist revolution |url=http://www.fifthinternational.org/ |website=www.fifthinternational.org}}
Revolutionary Communist International Tendency (RCIT), founded by former members of the IST and L5I.{{Cite web|title=Sections and Activists of the RCIT|url=https://www.thecommunists.net/what-we-stand-for/our-sections/|website=thecommunists.net}}
Liaison Committee for the Reconstruction of the Fourth International (CERCI), founded by the Bolivian party POR which broke off with the original Fourth International in the 1950s.{{Cite web |date=2025-05-09 |title=Partido Obrero Revolucionario |url=https://por-cerci.org/ |access-date=2025-05-11 |website=Partido Obrero Revolucionario |language=es}}

== Internationals that emerged from the International Committee of the Fourth International (ICFI) ==

International Committee of the Fourth International (ICFI){{cite web |title=World Socialist Web Site – Marxist analysis, international working class struggles & the fight for socialism |url=http://www.wsws.org/ |website=www.wsws.org}}
International Committee of the Fourth International (Workers Revolutionary Party){{Cite web|url=https://wrp.org.uk/about/international/|title=International}}
International Communist League (Fourth Internationalist) (ICL-FI),{{cite web |title=International Communist League |url=http://www.icl-fi.org/ |website=www.icl-fi.org}} previously the international Spartacist tendency which split from the ICFI in 1966.
International Bolshevik Tendency (IBT){{cite web |url=http://www.bolshevik.org/ |title=International Bolshevik Tendency |website=www.bolshevik.org}} formed by expelled members of the international Spartacist tendency in 1982.
Bolshevik Tendency, split from IBT in 2018.{{Cite web|title=Bolshevik Tendency - For the rebirth of the Fourth International!|url=https://bolsheviktendency.org/|access-date=2021-08-24|website=Bolshevik Tendency|language=en-GB}}
League for the Fourth International (LFI),{{cite web |title=Internationalist Group -- Reforge the Fourth International! |url=http://www.internationalist.org/ |website=www.internationalist.org}} formed by expelled members of the ICL-FI in 1996.
Organising Committee for the Reconstitution of the Fourth International (OCRFI), split from the defunct Fourth International (ICR) in 2016. The latter was formed after a split from the ICFI in 1972.{{Cite web |title=OCRFI-Fourth International |url=https://socialistorganizer.org/category/en/working-class-internationalism/ocrfi-fourth-international/ |access-date=2021-08-24 |website=Socialist Organizer |language=en}}
International Trotskyist Committee (ITC), founded by former members of the defunct Trotskyist International Liaison Committee in 1984. The latter was founded by expelled members of the ICFI in 1974.{{cite web|url=https://www.itc4.org/wp-content/uploads/2022/02/itr1.pdf |title=International Trotskyist Committee|website=itc4.org}}
International Trotskyist Opposition, split from the ITC, dissolved into CRCI. Re-established itself in 2022{{Cite web |title=Rules of the International Trotskyist Opposition – ITO-OTI |url=https://ito-oti.org/ito_congress_2022/ |access-date=2024-12-11 |language=en-US}}
Liaison Committee for the Fourth International, founded by former members of the ITC.{{Cite web |date=2017-11-26 |title=The Degeneration of the Revolutionary Internationalist League/ITC |url=https://socialistfight.com/2017/11/26/the-revolutionary-internationalist-league-itc/ |access-date=2025-01-18 |website=Socialist Fight |language=en}}[https://www.consistent-democrats.org/lcfi-draft-programme/ LCFI Draft Programme], en inglés, consultado el 12/08/2023.

==Others ==

Internationalist Communist Union (ICU){{cite web |url=http://www.union-communiste.org/ |title=Internationalist Communist Union – Workers of the world, unite! |website=www.union-communiste.org}}
Permanent Revolution Collective{{Cite web|title=Permanent Revolution Collective|url=http://www.revolucionpermanente.com/english/|access-date=2021-09-13|website=www.revolucionpermanente.com}}

File:Timeline of CWI successors.svg

= Defunct =

Liaison Committee for a Revolutionary Workers International, founded by former militants of the Argentinian MAS and PO{{Cite web |last=admin |date=2021-05-03 |title=Se realizó el V Congreso del PCO |url=https://causa-obrera.org/index.php/2021/05/03/se-realizo-el-v-congreso-del-pco/ |access-date=2024-12-12 |language=es}}{{Cite web |last=ntici1938 |date=2023-07-17 |title=INTERCAMBIO DE CORRESPONDENCIA CON LA LCT |url=https://ntici1938.wordpress.com/2023/07/17/intercambio-de-correspondencia-con-la-lct/ |access-date=2025-01-21 |website=NTI-CI |language=es}}
Committee for a Workers' International (CWI), 1974–2019 – split into Committee for a Workers' International (Refounded) and International Socialist Alternative
Coordinating Committee for the Refoundation of the Fourth International (CRCI)
International League for the Reconstruction of the Fourth International (ILRFI), 1976–1995{{Citation needed |date=July 2024}}
Fourth International Posadist{{cite book |last1=Kelly |first1=John |title=Contemporary Trotskyism |date=2018 |publisher=Taylor & Francis |isbn=9781317368946}}
Workers International to Rebuild the Fourth International (WIRFI){{Cite web |title=wirfi – Workers International to rebuild the 4th International. |url=https://workersinternational.info/ |access-date=2021-08-24 |language=en-US}}
International Revolutionary Marxist Tendency (TMRI), 1965–1992
Permanent Revolution
Revolutionary Workers Ferment (Fomento Obrero Revolucionario, FOR)
Trotskyist International Liaison Committee, 1979–1984{{Cite web |last=M |first=Rob |date=2017-10-11 |title=The Workers Socialist League |url=https://splitsandfusions.wordpress.com/2017/10/11/the-workers-socialist-league/ |access-date=2025-05-11 |website=Splits and Fusions |language=en}}
Tendencia Cuartainternacionalista[http://por-cerci.org/cerci2/revisitas-internacionalismo/ Revisitas Internacionalismo Publicadas por la TCI], in Spanish, consulted on 4/8/2023.[http://lemarx.faced.ufba.br/arquivo/omarxismodepoisdemarxeengels.pdf O marxismo depois de Marx e Engels], in portuguese, consulted on 4/8/2023.[https://pormassas.org/wp-content/uploads/2016/05/14BII-OUT-2010-Por.pdf Boletim do Comitê de Enlace pela Reconstrução da IV Internacional Publicação trimestral do Comitê de Enlace pela Reconstrução da IV Internacional - Versão em Português - Outubro de 2010], in portuguese, consulted on 4/8/2023.[https://www.itc4.org/wp-content/uploads/2022/02/itr1.pdf The Fourth Internationalist Tendency], consulted on 4/8/2023.
Fourth International (ICR), also called FI (La Verité) or FI (International Secretariat){{Cite web |title=Fourth International |url=http://www.quatrieme-internationale.org/?lang=en |url-status=dead |archive-url=https://web.archive.org/web/20150415061147/http://www.quatrieme-internationale.org/?lang=en |archive-date=2015-04-15 |access-date=2015-04-17}} 1981–2015
Socialist Network{{Cite web |title=The Socialist Network |url=https://thesocialistnetwork.org/ |access-date=2021-08-21 |website=The Socialist Network |language=en-GB}} (Post-Trotskyist, split from IMT)

References

External links

[https://web.archive.org/web/20100125213017/http://www.broadleft.org/abbr.htm List of socialist internationals]
[https://web.archive.org/web/20100211114427/http://www.broadleft.org/trotskyi.htm List of Trotskyist parties and their internationals]