Argentina

=== Provinces ===
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{{Main|Provinces of Argentina}}
Argentina is a federation of twenty-three provinces and one [[autonomous city]], Buenos Aires. Provinces are divided for administration purposes into [[Departments of Argentina|departments]] and [[Municipalities of Argentina|municipalities]], except for Buenos Aires Province, which is divided into [[Partidos of Buenos Aires|partidos]]. The City of Buenos Aires is divided into [[Barrios and Communes of Buenos Aires|communes]].

Provinces hold all the power that they chose not to delegate to the federal government;{{sfn|Constitution of Argentina|loc=art. 121}} they must be representative republics and must not contradict the Constitution.{{sfn|Constitution of Argentina|loc=arts. 5–6}} Beyond this they are fully autonomous: they enact their own constitutions,{{sfn|Constitution of Argentina|loc=art. 123}} freely organize their local governments,{{sfn|Constitution of Argentina|loc=art. 122}} and own and manage their natural and financial resources.{{sfn|Constitution of Argentina|loc=arts. 124–125}} Some provinces have bicameral legislatures, while others have [[Unicameralism|unicameral]] ones.{{efn-ua|Although not a province, the [[City of Buenos Aires]] is a federally [[autonomous city]], and as such its local organization has similarities with provinces: it has its own constitution, an elected mayor and representatives to the Senate and Deputy chambers.{{sfn|Constitution of Argentina|loc=art. 129}} As [[federal capital]] of the nation it holds the status of [[federal district]].}}

[[La Pampa Province|La Pampa]] and Chaco became provinces in 1951. Misiones did so in 1953, and [[Formosa Province|Formosa]], [[Neuquén Province|Neuquén]], [[Río Negro Province|Río Negro]], [[Chubut Province|Chubut]] and Santa Cruz, in 1955. The last national territory, Tierra del Fuego, became the [[Tierra del Fuego, Antártida e Islas del Atlántico Sur Province]] in 1990.{{sfn|Rey Balmaceda|1995|p=19}} It has three components, although two are nominal because they are not under Argentine sovereignty. The first is the Argentine part of Tierra del Fuego; the second is an area of Antarctica claimed by Argentina that overlaps with similar areas claimed by the UK and Chile; the third comprises the two disputed British Overseas Territories of the [[Falkland Islands]] and [[South Georgia and the South Sandwich Islands]].<ref name="Duggan and Lewis">{{cite book |author1=Bernado A. Duggan |author2=Colin M. Lewis |title=Historical Dictionary of Argentina |date=2019 |publisher=Rowman & Littlefield |isbn=978-1-5381-1970-9 |page=696 |url=https://books.google.com/books?id=wiCmDwAAQBAJ&q=Islas+Sandwich+del+Sur:+La+Argentina+en+el+Atl%C3%A1ntico+Sur&pg=PA696 |access-date=21 March 2020 |archive-date=29 November 2023 |archive-url=https://web.archive.org/web/20231129143453/https://books.google.com/books?id=wiCmDwAAQBAJ&q=Islas+Sandwich+del+Sur:+La+Argentina+en+el+Atl%C3%A1ntico+Sur&pg=PA696#v=snippet&q=Islas%20Sandwich%20del%20Sur%3A%20La%20Argentina%20en%20el%20Atl%C3%A1ntico%20Sur&f=false |url-status=live }}</ref>