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An independence referendum is a type of referendum in which the citizens of a territory decide whether the territory should become an independent sovereign state. An independence referendum that results in a vote for independence does not always ultimately result in independence.
The articles on specific referendums are linked with dates in the table on past referendums.
An independence referendum typically arises first after political success for nationalists of a territory. This could come in the election of politicians or parties with separatist policies, or from pressure from nationalist organisations.
Negotiations for the terms of an independence referendum may take place between the nationalists and the government which exercises sovereignty over the territory. If terms can be agreed, then the independence referendum can be held with its result binding, and respected by the international community. Independence referendums can be held without the consent of governments, but their results are usually ignored by the international community.
Various issues can be discussed in negotiations, such as the date and timing of the poll, as well as voter eligibility. For these instances, common electoral practice is often widely used, although there can be deviations, as seen with the lowering of the voting age for the 2014 Scottish independence referendum.
Other issues to be negotiated include what question or questions should be on the ballot, and what the voting options could be. Independence referendums can offer options of greater autonomy as well as, or instead of, the status quo. They can also put forward other constitutional questions to ballot. The questions that referendums ask may be revised if parties involved in negotiations consider them to be too leading.
Negotiations notably need to address what would make a result binding. For some independence referendums, a simple majority is required for one option. In other cases, a quota can be used, where a certain percentage of the vote or the electorate needs to be in favour of an option for it to be binding.
Successful negotiations can be hard to achieve for nationalists, as governments can be reluctant to give up sovereignty. For example, nationalists planned to hold a referendum in Catalonia in 2014, but met opposition from the Spanish government. As a result, the referendum that went ahead was unofficial and non-binding.
In the event of a vote for independence, there may be negotiations on the terms of secession for the territory from the sovereign state. A declaration of independence for a new state is then made, and international recognition can follow, as well as membership of international organisations such as the United Nations. In cases involving non-binding referendums, this can lead to a unilateral declaration of independence, and therefore partially recognised or self-proclaimed states.
In the event of a vote against independence, there may still be a strong nationalist movement and calls for there to be a rerun of the independence referendum. For example, after two referendums in Quebec, the Parti Québécois has continued to raise the prospect of holding another referendum, and the Scottish National Party has said that there should be a repeat of the 2014 referendum if the United Kingdom leaves the European Union.
|Proposed state||Year||Former state||Majority for independence||Independence||Recognition||Notes|
|Liberia||1846||American Colonization Society||Yes||Yes||Yes|
|23x15px Maryland||1853||Maryland State Colonization Society||Yes||Yes||Yes|
|Norway||1905||Sweden and Norway||Yes||Yes||Yes|
|Mongolia||1945||Republic of China||Yes||Yes||Yes|
|Faroe Islands||1946||Denmark||Yes||No||No||The Declaration of Independence was annulled by Denmark|
|Saar||1955||France||No||No||Yes||Territory later transferred to West Germany|
|Cameroon||1958||France||No||No||Yes||Referendum on the new French constitution. A no vote would have led to independence.|
|Central African Republic||1958||France||No||No||Yes||Referendum on the new French constitution. A no vote would have led to independence.|
|Chad||1958||France||No||No||Yes||Referendum on the new French constitution. A no vote would have led to independence.|
|Comoros||1958||France||No||No||Yes||Referendum on the new French constitution. A no vote would have led to independence.|
|Republic of the Congo||1958||France||No||No||Yes||Referendum on the new French constitution. A no vote would have led to independence.|
|Dahomey||1958||France||No||No||Yes||Referendum on the new French constitution. A no vote would have led to independence.|
|Djibouti||1958||France||No||No||Yes||Referendum on the new French constitution. A no vote would have led to independence.|
|French Polynesia||1958||France||No||No||Yes||Referendum on the new French constitution. A no vote would have led to independence.|
|Gabon||1958||France||No||No||Yes||Referendum on the new French constitution. A no vote would have led to independence.|
|Guinea||1958||France||Yes||Yes||Yes||Referendum on the new French constitution. A no vote led to independence.|
|Ivory Coast||1958||France||No||No||Yes||Referendum on the new French constitution. A no vote would have led to independence.|
|Madagascar||1958||France||No||No||Yes||Referendum on the new French constitution. A no vote would have led to independence.|
|Mali||1958||France||No||No||Yes||Referendum on the new French constitution. A no vote would have led to independence.|
|Mauritania||1958||France||No||No||Yes||Referendum on the new French constitution. A no vote would have led to independence.|
|New Caledonia||1958||France||No||No||Yes||Referendum on the new French constitution. A no vote would have led to independence.|
|Niger||1958||France||No||No||Yes||Referendum on the new French constitution. A no vote would have led to independence.|
|Saint Pierre and Miquelon||1958||France||No||No||Yes||Referendum on the new French constitution. A no vote would have led to independence.|
|Senegal||1958||France||No||No||Yes||Referendum on the new French constitution. A no vote would have led to independence.|
|Upper Volta||1958||France||No||No||Yes||Referendum on the new French constitution. A no vote would have led to independence.|
|Rhodesia||1964||United Kingdom||Yes||De facto||No|
|Puerto Rico||1967||United States||No||No||Yes|
|West Papua||1969||Indonesia||No||No||Yes||The question asked was whether West Papua wanted to give up its sovereignty to Indonesia, with an alleged majority yes.|
|Northern Mariana Islands||1969||United States||No||No||Yes||A majority voted for integration with Guam|
|Bahrain||1970||United Kingdom||Yes||Yes||Yes||The question was whether Bahrainis preferred annexation by Iran or independence.|
|Niue||1974||New Zealand||Majority for associated status||Associated status achieved||Yes||The referendum was on whether Niue should became an associated state of New Zealand. This status is sometimes considered to be independence.|
|Comoros||1974||France||Yes||Yes||Yes||The country declared independence on 6 July 1975, with Mayotte remaining under French control.|
|Trust Territory of the Pacific Islands||1975||United States||No||No||Yes||Only voters in what would become the Federated States of Micronesia voted for independence.|
|Guam||1976||United States||No||No||Yes||A majority voted for an improved status quo|
|Aruba||1977||Netherlands||Yes||No||Yes||Plans for full independence were scrapped in 1994|
|Nevis||1977||Saint Kitts and Nevis||Yes||No||No||Referendum organised by the Nevis Reformation Party but not recognised by the Saint Kitts and Nevis government.|
|Ciskei||1980||South Africa||Yes||De facto||No||Like other Bantustans, its independence was not internationally recognised.|
|Micronesia||1983||United States||Yes||Yes||Yes||Micronesia became an associated state of the United States|
|Marshall Islands||1983||United States||No||No||Yes|
|Palau||1983||United States||No||No||Yes||Voters approved the Compact of Free Association with the United States|
|Palau||1984||United States||No||No||Yes||Voters again approved the Compact of Free Association with the United States|
|Falkland Islands||1986||United Kingdom||No||No||Yes|
|Macedonia||1991||Yugoslavia||Yes||Yes||Yes||Independence was achieved in 1993.|
|Nagorno-Karabakh||1991||Azerbaijan||Yes||De facto||No||Led to de facto independence|
|Transnistria||1991||Moldova||Yes||De facto||No||Led to de facto independence|
|Bosnia and Herzegovina||1992||Yugoslavia||Yes||Yes||Yes|
|South Ossetia||1992||Georgia||Yes||De facto||No||Led to de facto independence|
|United States Virgin Islands||1993||United States||No||No||Yes|
|Puerto Rico||1993||United States||No||No||Yes|
|Curaçao||1993||Netherlands||No||No||Yes||A majority voted for restructuring the Netherlands Antilles|
|Moldova||1994||N/A||Yes||Yes||Yes||The issue was whether Moldova should retain its independent status|
|Bonaire||1994||Netherlands||No||No||Yes||A majority voted for keeping the status quo.|
|Sint Maarten||1994||Netherlands||No||No||Yes||A majority voted for keeping the status quo.|
|Saba||1994||Netherlands||No||No||Yes||A majority voted for keeping the status quo.|
|Sint Eustatius||1994||Netherlands||No||No||Yes||A majority voted for keeping the status quo.|
|Quebec||1995||Canada||No||No||Yes||Results ; Yes : 49.42 No : 50.58|
|23x15px Anjouan||1997||Comoros||Yes||Yes||No||Anjouan remained de facto independent until 2001|
|Nevis||1998||Saint Kitts and Nevis||Yes||No||Yes||62% of voters approved of independence, but a 2/3 majority was required.|
|Puerto Rico||1998||United States||No||No||Yes|
|East Timor||1999||Indonesia||Yes||Yes||Yes||The referendum was organised by the United Nations; independence was achieved in 2002|
|Sint Maarten||2000||Netherlands||No||No||Yes||A majority voted for becoming a country within the Kingdom of the Netherlands.|
|Bonaire||2004||Netherlands||No||No||Yes||A majority voted for integration with the Netherlands|
|Saba||2004||Netherlands||No||No||Yes||A majority voted for direct constitutional ties with the Netherlands|
|Curaçao||2005||Netherlands||No||No||Yes||A majority voted to become an Autonomous country within the Kingdom of the Netherlands|
|Sint Eustatius||2005||Netherlands||No||No||Yes||A majority voted for remaining part of the Netherlands Antilles|
|Montenegro||2006||Serbia and Montenegro||Yes||Yes||Yes|
|South Ossetia||2006||Georgia||Yes||De facto||No||The issue was whether South Ossetia should retain its de facto independent status|
|Transnistria||2006||Moldova||Yes||De facto||No||The issue was whether Transnistria should retain its de facto independent status|
|Tokelau||2006||New Zealand||Majority for associated status||Associated status not achieved||Yes||The referendum was on whether Tokelau should became an associated state of New Zealand. This status is sometimes considered to be independence. 60% of voters approved, but a 2/3 majority was required.|
|Tokelau||2007||New Zealand||Majority for associated status||Associated status not achieved||Yes||The referendum was on whether Tokelau should became an associated state of New Zealand. This status is sometimes considered to be independence. 60% of voters approved, but a 2/3 majority was required.|
|Puerto Rico||2012||United States||No||No||Yes|
|Donetsk||2014||Ukraine||Yes||De facto||No||The issue was whether the Donetsk People's Republic should retain its de facto independent status. Only a portion of this territory can be considered independent.|
|Lugansk||2014||Ukraine||Yes||De facto||No||The issue was whether the Lugansk People's Republic should retain its de facto independent status. Only a portion of this territory can be considered independent.|
|Veneto||2014||Italy||Yes||No||No||The referendum was conducted online and through self-organised voting booths by a private organization, Plebiscite 2013, without voter verification, and without the cooperation of the Italian national or Venetian regional governments. Plebiscite 2013 claimed a turnout rate of 63.2% of all eligible voters, while critics of the poll cited turnout rates as low 3.6%, and traced a large portion of the website's traffic to users outside Italy.|
|Sint Eustatius||2014||Netherlands||No||No||Yes||A majority voted for autonomy within the Kingdom of the Netherlands, but low turnout invalidated the result.|
Scheduled independence referendums
|Proposed state||Date||Current state||Recognition||Notes|
|23x15px Chuuk||–||Micronesia||No||Originally scheduled for 3 March 2015, but later indefinitely postponed.|
|Iraqi Kurdistan||–||Iraq||No||Originally to be held in late 2014, later postponed. See Iraqi Kurdistan independence referendum.|
|New Caledonia||Between 2016 and 2018||France||Yes||See Nouméa Accord.|
|23x15px Bougainville||Between 2016 and 2020||Papua New Guinea||Yes|
- "Neverendum referendum: Voting on independence, Quebec-style". BBC News Online. 8 September 2014. Retrieved 17 January 2015.
- South Sudan backs independence – results
- "In eastern Ukraine, polls close amid allegations of double-voting - CNN.com". CNN. 11 May 2014. Retrieved 30 September 2014.
- "Russia Praises Ukraine's Autonomy Law for Rebel Areas". WSJ. 17 September 2014. Retrieved 30 September 2014.
- "Veneto Libero, Indipendente (nella Nato in Europa e con l'Euro.... Il Problema è lo STATO ITALIANO) - Rischio Calcolato". rischiocalcolato.it. Retrieved 2014-03-25.
- http://corrieredelveneto.corriere.it/veneto/notizie/politica/2014/26-marzo-2014/indipendenza-numeri-sono-falsi-2224268533592.shtml corrieredelveneto
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- "Referendum Veneto, "150mila voti non 2 milioni". Organizzatori attaccano: "Falso" - Il Fatto Quotidiano". ilfattoquotidiano.it. Retrieved 2014-07-11.
- "La Stampa - Voti gonfiati al referendum veneto “Un elettore su 10 collegato dal Cile”". lastampa.it. Retrieved 2014-07-11.
- FSM state independence push unfounded Radio NZ, 27 February 2015
- "Iraq: Kurdish president proposes independence referendum". the Guardian. Retrieved 30 September 2014.
- AFP (07/03), Irak : le président de la région du Kurdistan demande un référendum d'indépendance Check date values in:
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- "Bougainville confirms independence referendum before 2020 - Pacific Beat". Retrieved 30 September 2014.