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Secession (derived from the Latin term secessio) is the withdrawal of a group from a larger entity, especially a political entity, but also from any organization, union or military alliance. Threats of secession can be a strategy for achieving more limited goals.  It is, therefore, a process, which commences once a group proclaims the act of secession (e.g. declaration of independence).  It could involve a violent or peaceful process but these do not change the nature of the outcome, which is the creation of a new state or entity independent from the group or territory it seceded from. 
- 1 Secession theory
- 2 Types of secession
- 3 Arguments against secession
4 Secession movements
- 4.1 Australia
- 4.2 Austria
- 4.3 Belgium and the Netherlands
- 4.4 Brazil
- 4.5 Canada
- 4.6 Central America
- 4.7 China
- 4.8 Congo
- 4.9 Cyprus
- 4.10 East Timor
- 4.11 Ethiopia
- 4.12 European Union
- 4.13 Finland
- 4.14 France
- 4.15 Gran Colombia
- 4.16 India
- 4.17 Italy
- 4.18 Iran
- 4.19 Japan
- 4.20 Malaysia
- 4.21 Mexico
- 4.22 New Zealand
- 4.23 Nigeria
- 4.24 Norway and Sweden
- 4.25 Pakistan
- 4.26 Papua New Guinea
- 4.27 Somalia
- 4.28 Soviet Union
- 4.29 South Africa
- 4.30 Spain
- 4.31 Sri Lanka
- 4.32 South Sudan
- 4.33 Switzerland
- 4.34 Ukraine
- 4.35 United Kingdom
- 4.36 United States
- 4.37 Yemen
- 4.38 Yugoslavia
- 5 See also
- 6 References
- 7 Further reading
- 8 External links
There is a great deal of theorizing about secession so that it is difficult to identify a consensus regarding its definition.  There is also a claim that this subject has been neglected by political philosophers and that by 1980s - when it finally generated interest - the discourse concentrated on the moral justifications of the unilateral right to secession.  It was only in the early 1990s when American philosopher Allen Buchanan offered the first systematic account of the subject and contributed to the normative classification of the literature on secession. In his 1991 book Secession: The Morality of Political Divorce From Fort Sumter to Lithuania and Quebec, Buchanan outlined limited rights to secession under certain circumstances, mostly related to oppression by people of other ethnic or racial groups, and especially those previously conquered by other people. 
According to the 2007 book Secession and Security by George Mason political scientist Ahsan Butt, states respond violently to secessionist movements if the potential state would pose a greater threat than a violent secessionist movement would.  States perceive future war as likely with a potentially new state if the ethnic group driving the secessionist struggle has deep identity division with the central state, and if the regional neighborhood is violent and unstable. 
Some theories of secession emphasize a general right of secession for any reason ("Choice Theory") while others emphasize that secession should be considered only to rectify grave injustices ("Just Cause Theory").  Some theories do both. A list of justifications may be presented supporting the right to secede, as described by Allen Buchanan, Robert McGee, Anthony Birch,  Jane Jacobs,  Frances Kendall and Leon Louw,  Leopold Kohr,  Kirkpatrick Sale,  and various authors in David Gordon's "Secession, State and Liberty", includes:
- United States President James Buchanan, Fourth Annual Message to Congress on the State of the Union December 3, 1860: "The fact is that our Union rests upon public opinion, and can never be cemented by the blood of its citizens shed in civil war. If it can not live in the affections of the people, it must one day perish. Congress possesses many means of preserving it by conciliation, but the sword was not placed in their hand to preserve it by force."
- Former President of the United States Thomas Jefferson, in a letter to William H. Crawford, Secretary of War under President James Madison, on June 20, 1816: "In your letter to Fisk, you have fairly stated the alternatives between which we are to choose : 1, licentious commerce and gambling speculations for a few, with eternal war for the many ; or, 2, restricted commerce, peace, and steady occupations for all. If any State in the Union will declare that it prefers separation with the first alternative, to a continuance in union without it, I have no hesitation in saying, 'let us separate'. I would rather the States should withdraw, which are for unlimited commerce and war, and confederate with those alone which are for peace and agriculture." 
- Economic enfranchisement of an economically oppressed class that is regionally concentrated within the scope of a larger national territory.
- The right to liberty, freedom of association and private property
- Consent as important democratic principle; will of majority to secede should be recognized
- Making it easier for states to join with others in an experimental union
- Dissolving such union when goals for which it was constituted are not achieved
- Self-defense when larger group presents lethal threat to minority or the government cannot adequately defend an area
- Self-determination of peoples
- Preserving culture, language, etc. from assimilation or destruction by a larger or more powerful group
- Furthering diversity by allowing diverse cultures to keep their identity
- Rectifying past injustices, especially past conquest by a larger power
- Escaping "discriminatory redistribution", i.e., tax schemes, regulatory policies, economic programs, etc. that distribute resources away to another area, especially in an undemocratic fashion
- Enhanced efficiency when the state or empire becomes too large to administer efficiently
- Preserving "liberal purity" (or "conservative purity") by allowing less (or more) liberal regions to secede
- Providing superior constitutional systems which allow flexibility of secession
- Keeping political entities small and human scale through right to secession
Aleksander Pavkovic,  associate professor at the Department of Politics and International Studies at Macquarie University in Australia and the author of several books on secession describes five justifications for a general right of secession within liberal political theory: 
- Anarcho-Capitalism: individual liberty to form political associations and private property rights together justify right to secede and to create a "viable political order" with like-minded individuals.
- Democratic Secessionism: the right of secession, as a variant of the right of self-determination, is vested in a "territorial community" which wishes to secede from "their existing political community"; the group wishing to secede then proceeds to delimit "its" territory by the majority.
- Communitarian Secessionism: any group with a particular "participation-enhancing" identity, concentrated in a particular territory, which desires to improve its members' political participation has a prima facie right to secede.
- Cultural Secessionism: any group which was previously in a minority has a right to protect and develop its own culture and distinct national identity through seceding into an independent state.
- The Secessionism of Threatened Cultures: if a minority culture is threatened within a state that has a majority culture, the minority needs a right to form a state of its own which would protect its culture.
- Secession from federation or confederation (political entities with substantial reserved powers which have agreed to join together) versus secession from a unitary state (a state governed as a single unit with few powers reserved to sub-units)
- Colonial aka "wars of independence" from a "mother country" or imperial state
- National (seceding entirely from the national state) versus local (seceding from one entity of the national state into another entity of the same state)
- Central or enclave (seceding entity is completely surrounded by the original state) versus peripheral (along a border of the original state)
- Secession by contiguous units versus secession by non-contiguous units ( exclaves)
- Separation or partition (although an entity secedes, the rest of the state retains its structure) versus dissolution (all political entities dissolve their ties and create several new states)
- Irredentism where secession is sought in order to annex the territory to another state because of common ethnicity or prior historical links
- Minority (a minority of the population or territory secedes) versus majority (a majority of the population or territory secedes)
- Secession of better off regions versus secession of worse off regions
- The threat of secession is sometimes used as a strategy to gain greater autonomy within the original state
Allen Buchanan, who supports secession under limited circumstances, lists arguments that might be used against secession: 
- "Protecting Legitimate Expectations" of those who now occupy territory claimed by secessionists, even in cases where that land was stolen
- "Self Defense" if losing part of the state would make it difficult to defend the rest of it
- "Protecting Majority Rule" and the principle that minorities must abide by them
- "Minimization of Strategic Bargaining" by making it difficult to secede, such as by imposing an exit tax
- "Soft Paternalism" because secession will be bad for secessionists or others
- "Threat of Anarchy" because smaller and smaller entities may choose to secede until there is chaos, although this is not the true meaning of the political and philosophical concept.
- "Preventing Wrongful Taking" such as the state's previous investment in infrastructure
- "Distributive Justice" arguments that wealthier areas cannot secede from poorer ones
According to University of California, Santa Barbara, political scientist Bridget L. Coggins, there are four potential explanations in the academic literature for the drastic increase in state birth during the 20th century: 
- Ethnonational mobilization - Ethnic minorities have been increasingly mobilized to pursue states of their own.
- Institutional empowerment - The growing inability of empires and ethnic federations to maintain colonies and member states.
- Relative strength - Increasingly powerful secessionist movements are more likely to achieve statehood.
- Negotiated consent - Home states and the international community increasingly consent to secessionist demands.
Movements that work towards political secession may describe themselves as being autonomy, separatist, independence, self-determination, partition, devolution, decentralization, sovereignty, self-governance or decolonization movements instead of, or in addition to, being secession movements.
During the 19th century, the single British colony in eastern mainland Australia, New South Wales (NSW) was progressively divided up by the British government as new settlements were formed and spread. Victoria (Vic) in 1851 and Queensland (Qld) in 1859.
However, settlers agitated to divide the colonies throughout the later part of the century; particularly in central Queensland (centred in Rockhampton) in the 1860s and 1890s, and in North Queensland (with Bowen as a potential colonial capital) in the 1870s. Other secession (or territorial separation) movements arose and these advocated the secession of New England in northern central New South Wales, Deniliquin in the Riverina district also in NSW, and Mount Gambier in the eastern part of South Australia.
- Western Australia
Secession movements have surfaced several times in Western Australia (WA), where a 1933 referendum for secession from the Federation of Australia passed with a two-thirds majority. The referendum had to be ratified by the British Parliament, which declined to act, on the grounds that it would contravene the Australian Constitution.
- The Principality of Hutt River claims to have seceded from Australia in 1970, although its status is not recognised by Australia or any other country. According to a lexicon on nationalist movements across the world, Macau happened to recognise that Principality.[ citation needed]
After being liberated by the Red Army and the U.S. Army, Austria seceded from Nazi Germany on April 27, 1945. This took place after seven years of Austria's being part of Adolf Hitler's Third Reich due to the Anschluss annexation of Austria into Nazi Germany in March 1938, and could not have taken place without the Third Reich being defeated by the Allies.
On August 25, 1830, during the reign of William I, the nationalistic opera La muette de Portici was performed in Brussels. Soon after, the Belgian Revolt occurred, which resulted in the Belgian secession from the Netherlands.
In 1825, soon after the Empire of Brazil managed to defeat the Cortes-Gerais and Portugal in an Independence War, the platinean nationalists in Cisplatina declared independence and joined the United Provinces, which led to a stagnated war between both, as they were both weakened, without manpower and fragile politically. The peace treaty accepted Uruguay independence, reasserted the rule of both nations over their land and some important points like free navigation in the Silver River.
Three rather disorganized secessionist rebellions happened in Grão-Pará, Bahia and Maranhão, where the people were unhappy with the Empire (these provinces were Portuguese bastions in the Independence War). The Malê Revolt, in Bahia, was an Islamic slave revolt. These three rebellions were bloodily crushed by the Empire of Brazil.
The Pernambuco was one of the most nativist of all Brazilian regions, which in five revolts (1645–1654, 1710, 1817, 1824, 1848), the province ousted the Dutch West India Company, tried to secede from the Portuguese Empire and from the Brazilian Empire. In the attempts the rebels were crushed, the leaders shot and its territory divided, nevertheless they kept revolting until its territory was a little fraction of what it was before.
In the Ragamuffin War, the Province of Rio Grande do Sul was undergoing a (at that time common) liberal vs conservative "cold" war. After the Emperor favoured the conservatives, the liberals took the Capital and declared an independent Republic, fighting their way to the Province of Santa Catarina, declaring the Juliana Republic. Eventually they were slowly forced back, and made a reunification peace with the Empire. The war was not a secessionist war, even if it could become if the Empire were defeated, after the Empire agreed to aid its economy by taxing Argentina's products (like dry meat), the rebels reunited with the Empire and even filled its ranks, as the rebels were very good fighters.
In modern times, the South Region of Brazil has been the centre of a secessionist movement led by an organization called The South is My Country since the 1990s. Reasons cited for South Region Brazil's secession are taxation due to it being one of the wealthiest regions in the country and political disputes with the northernmost states of Brazil as well as the recent scandal revolving around the Workers Party found to be making shady deals with state-owned oil company Petrobras and the impeachment of then- President Dilma Rouseff additionally there is also an ethnic divide as the South Region is predominately European populated primarily by Germans, Italians, Portuguese and other European countries in contrast to the rest of Brazil which is a multicultural melting pot " Racial Democracy". The South Region in 2016 voted in an unofficial referendum called "Plebisul" in which 616,917 (or half a million) voters overwhelming supported secession and the creation of an independent South Region by 95%. Another Brazilian secession movement is based in the state of Sao Paulo which seeks to create to make the state an independent country from the rest of Brazil.
Throughout Canada's history, there has been tension between English-speaking and French-speaking Canadians. Under the Constitutional Act of 1791, the Quebec colony (including parts of what is today Quebec, Ontario and Newfoundland and Labrador) was divided in two: Lower Canada (which retained French law and institutions and is now divided between the provinces of Quebec and Newfoundland and Labrador) and Upper Canada (a new colony intended to accommodate the many English-speaking settlers, including the United Empire Loyalists, and now part of Ontario). The intent was to provide each group with its own colony. In 1841, the two Canadas were merged into the Province of Canada. The union proved contentious, however, resulting in a legislative deadlock between English and French legislators. The difficulties of the union led to the adoption of a federal system in Canada, and the Canadian Confederation in 1867. The federal framework did not eliminate all tensions, however, leading to the Quebec sovereignty movement in the latter half of the 20th century.
Other occasional secessionist movements have included anti-Confederation movements in 19th century Atlantic Canada (see Anti-Confederation Party), the North-West Rebellion of 1885, and various small separatism movements in Alberta particularly (see Alberta separatism) and Western Canada generally (see, for example, Western Canada Concept).
After the 1823 collapse of the First Mexican Empire, the former Captaincy-General of Guatemala was organized into a new Federal Republic of Central America. In 1838 Nicaragua seceded. The Federal Republic was formally dissolved in 1840, all but one of the states having seceded amidst general disorder.
- The Anti-Secession Law against the Taiwan independence movement
- Western regions of Xinjiang and Tibet are the focus of secessionist calls by the Tibetan independence movement and East Turkestan Islamic movement.
In 1974, the Turkish Army invaded northern Cyprus to protect the interests of the ethnic Turkish minority, who in the following year formed the Turkish Federative State of Cyprus and in 1983 declared independence as the Republic of Northern Cyprus, recognized only by Turkey.
The Democratic Republic of Timor-Leste (also known as East Timor) has been described as having "seceded" from Indonesia.    After Portuguese sovereignty was terminated in 1975, East Timor was occupied by Indonesia. However the United Nations and the International Court of Justice refused to recognize this incorporation. Therefore, the resulting civil war and eventual 2002 East Timorese vote for complete separation are better described as an independence movement. 
Following the 1993 victory of opposition forces against the communist Derg regime during the Ethiopian Civil War, Eritrea (formerly known as "Bahri Negash" before being renamed to "Eritrea" by Italian colonizers from 1890–1941) seceded in a United Nations referendum with the blessing of the newly formed Ethiopian government.
Before the Treaty of Lisbon entered into force on 1 December 2009 no provision in the treaties or law of the European Union outlined the ability of a state to voluntarily withdraw from the EU. The European Constitution did propose such a provision and, after the failure to ratify the Treaty establishing a Constitution for Europe, that provision was then included in the Lisbon Treaty.
The treaty introduces an exit clause for members who wish to withdraw from the Union. This formalises the procedure by stating that a member state may notify the European Council that it wishes to withdraw, upon which withdrawal negotiations begin; if no other agreement is reached the treaty ceases to apply to the withdrawing state two years after such notification.[ citation needed]
Finland successfully and peacefully seceded from the newly formed and weak Russian Soviet Federative Socialist Republic in 1917, the latter led by Lenin who had goodwill towards the Finns due to their having helped in his revolutionary struggle. Unsuccessful attempts at greater autonomy or peaceful secession had already been made during the preceding Russian Empire but had been denied by the Russian emperor.
After a decade of tumultuous federalism, Ecuador and Venezuela seceded from Gran Colombia in 1830, leaving the similarly tumultuous United States of Colombia, now the Republic of Colombia which also lost Panama in 1903.
Pakistan seceded from the British Indian empire in what is known as the Partition. Today, the Constitution of India does not allow Indian states to secede from the Union. The disputed territory of Indian-administered Kashmir has had a violent nationalist movement against Indian annexation mostly in the Valley of Kashmir since 1989, which continues and is supported by Pakistan. Other violent secessionist movements in Nagaland, Assam, Manipur, Punjab (known as the Khalistan movement), Mizoram and Tripura were also formerly active, while Tamil Nadu had a non-violent movement in the 1960s.  While a violent Maoist Naxalite insurgency continues to rage across a wide-swath of eastern rural India, the movement is not considered a secessionist movement because the goal of the Maoists is to overthrow the government of India, although rebel commanders have occasionally called for a Communist republic to be carved out of swaths of India. The Pakistani Armed organizations is a participant in the Kashmir conflict and strives to establish the merger state of Jammu and Kashmir from secular India to Muslim Pakistan.
The Movement for the Independence of Sicily (Movimento Indipendentista Siciliano, MIS) has its roots in the Sicilian Independence Movement of the late 1940s; they have been around for 60 years. Today, the MIS no longer exists, though many other parties have been born. One is Nation Sicily (Sicilia Nazione), which still believes in the idea that Sicily, due to its deeply personal and ancient history, has to be a sovereign country. Moreover, a common ideology shared by all the Sicilian independentist movements is to fight against Cosa Nostra and all the other Mafia organizations, that have a very deep influence over Sicily's public and private institutions. Also, the Sicilian branch of the Five Star Movement, which is according to the polls Sicily's most popular party, has publicly expressed the intention to start working for a possible secession from Italy in the case where the central government would not collaborate in shifting the nation's administrative organization from a unitary country to a federative country. Lega Nord has been seeking the independence of the so-called region of Padania, which includes lands along the Po Valley in northern Italy. Some organizations separately work for the independence of Venetia or Veneto and the secession or reunification of South Tyrol with Austria. Lega Nord governing Lombardy has expressed a will to turning the region into a sovereign country. Also the island of Sardinia is home to a notable nationalist movement. In Southern Italy several movements have expressed a will to secede from Italy. This newborn ideology is so-called neo-Bourbonic, because the Kingdom of the Two Sicilies was under the control of the House of Bourbon. The Kingdom of the Two Sicilies was created in 1816 after the Congress of Vienna, and it comprised both Sicily and continental Southern Italy. The Kingdom came to an end in 1861, being annexed to the newborn Kingdom of Italy. However, the patriotic feelings shared among the southern Italian population is more ancient, starting in 1130 with the Kingdom of Sicily, which was composed by both the island and south Italy. According to the neo-Bourbonic movements the Italian regions which should secede are Sicily, Calabria, Basilicata, Apulia, Molise, Campania, Abruzzo, and Latio's provinces of Rieti, Latina and Frosinone. The major movements and parties which believe in this ideology are Unione Mediterranea, Mo! and Briganti.
Active secession movements include: Iranian Azeri, Assyrian independence movement, Bakhtiary lurs movement in 1876, Iranian Kurdistan; Kurdistan Democratic Party of Iran (KDPI), Khūzestān Province Balochistan independence movement for free separated Balochistan, ( Arab nationalist); Al-Ahwaz Arab People's Democratic Popular Front, Democratic Solidarity Party of Al-Ahwaz (See Politics of Khūzestān Province: Arab politics and separatism), and Balochistan People's Party (BPP) supporting Baloch Separatism. 
The Ryukyuan (Okinawan) people had their own state historically ( Ryukyu Kingdom) and have sought to become independent from Japan since they were annexed by Japan in 1879, and especially after 1972 when the islands were transferred from U.S. rule to Japan.
When racial and partisan strife erupted, Singapore was expelled from the Malaysian federation in 1965. Agitation for secession has since been sporadic on the culturally distinct large island of Borneo in the states of Sabah and Sarawak although these sentiments have been gaining momentum and support in the past few years following the proliferation of social medias and failure of the central government to fulfill conditions of the Malaysia Agreement 1963.
- Texas seceded from Mexico in 1836 (see Texas Revolution), after animosity between the Mexican government and the American settlers of the Coahuila y Tejas State. It was later annexed by the United States in 1845.
- The Republic of the Rio Grande seceded from Mexico on January 17, 1840. It rejoined Mexico on November 6 the same year.
- After the federal system was abandoned by President Santa Anna, the Congress of Yucatán approved in 1840 a declaration of independence, establishing the Republic of Yucatán. The Republic rejoined Mexico in 1843.
Secession movements have surfaced several times in the South Island of New Zealand. A Premier of New Zealand, Sir Julius Vogel, was amongst the first people to make this call, which was voted on by the Parliament of New Zealand as early as 1865. The desire for South Island independence was one of the main factors in moving the capital of New Zealand from Auckland to Wellington in the same year.
The NZ South Island Party with a pro-South agenda, fielded only five candidates (4.2% of electoral seats) candidates in the 1999 General Election but achieved only 0.14% (2622 votes) of the general vote. The reality today is that although "South Islanders" are most proud of their geographic region, secession does not carry any real constituency; the party was not able to field any candidates in the 2008 election due to being unable to enlist 500 paying members, a requirement by the New Zealand Electoral commission. The party is treated more as a "joke" party than any real political force.
Between 1967 and 1970, the state of Biafra (The Republic of Biafra) seceded from Nigeria and fought a war that ended with the state returning to Nigeria. Later in 1999 at the beginning of a new democratic regime, other secessionist movements emerged, the movement for the Actualization of a Sovereign state of Biafra was formed as a military wing of the Republic of Biafra.
Sweden, having left the Kalmar Union with Denmark and Norway in the 16th century, entered into a loose personal union with Norway in 1814. Following a constitutional crisis, on June 7, 1905 the Norwegian Parliament declared that King Oscar II had failed to fulfill his constitutional duties. He was therefore no longer King of Norway and because the union depended on the two countries sharing a king, it was thus dissolved. After negotiations Sweden agreed to this on October 26 and on April 14.
After the Awami League won the 1970 national elections, negotiations to form a new government floundered, resulting in the Bangladesh Liberation War by which the eastern wing of Pakistan seceded, to become Bangladesh. The Balochistan Liberation Army (also Baloch Liberation Army or Boluchistan Liberation army) (BLA) is a Baloch nationalist militant secessionist organization. The stated goals of the organization include the establishment of an independent state of Balochistan free of Pakistani, Iranian and Afghan Federations . The name Baloch Liberation Army first became public in summer 2000, after the organization claimed credit for a series of bomb attacks in markets and removal of railways lines.[ citation needed]
Somaliland is an autonomous region,  which is part of the Federal Republic of Somalia.   Those who call the area the Republic of Somaliland consider it to be the successor state of the former British Somaliland protectorate. Having established its own local government in Somalia in 1991, the region's self-declared independence remains unrecognized by any country or international organization.  
The Constitution of the Soviet Union guaranteed all SSRs the right to secede from the Union. In practice however, the central government wouldn't allow an SSR to secede. In 1990, after free elections, the Lithuanian SSR declared independence and other SSRs soon followed. Despite the Soviet central-government's refusal to recognize the independence of the republics, the Soviet Union dissolved in 1991.
In 1910, following the British Empire's defeat of the Afrikaners in the Boer Wars, four self-governing colonies in the south of Africa were merged into the Union of South Africa. The four regions were the Cape Colony, Orange Free State, Natal and Transvaal. Three other territories, High Commission Territories of Bechuanaland (now Botswana), Basutoland (now Lesotho) and Swaziland later became independent states in the 1960s. Following the election of the Nationalist government in 1948, some English-speaking whites in Natal advocated either secession or a loose federation.  There were also calls for secession, with Natal and the eastern part of the Cape Province breaking away.  following the referendum in 1960 on establishing a republic, and in 1993, prior to South Africa's first elections under universal suffrage and the end of apartheid, some Zulu leaders in KwaZulu-Natal  considered secession as did some politicians in the Cape Province. 
In 2008, a political movement calling for the return to independence of the Cape resurged in the shape of the political organisation, the Cape Party. The Cape Party contested their first elections on 22 April 2009. 
Spain (known officially as "the Kingdom of Spain") was assembled in the 15th and 16th centuries from various component kingdoms, some having lost their secession wars. Spain has several secessionist movements, the most notable being in Catalonia and in the Basque Country.
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A referendum took place in Southern Sudan from 9 to 15 January 2011, on whether the region should remain a part of Sudan or become independent. The referendum was one of the consequences of the 2005 Naivasha Agreement between the Khartoum central government and the Sudan People's Liberation Army/Movement (SPLA/M).
A simultaneous referendum was supposed to be held in Abyei on whether to become part of Southern Sudan but it has been postponed due to conflict over demarcation and residency rights.
On 7 February 2011, the referendum commission published the final results, with 98.83% voting in favour of independence. While the ballots were suspended in 10 of the 79 counties for exceeding 100% of the voter turnout, the number of votes were still well over the requirement of 60% turnout, and the majority vote for secession is not in question.
The predetermined date for the creation of an independent state was 9 July 2011.
In 1847, seven disaffected Catholic cantons formed a separate alliance because of moves to change the cantons of Switzerland from a confederation to a more centralized government federation. This effort was crushed in the Sonderbund War and a new Swiss Federal Constitution was created. 
In the aftermath of the Ukrainian Revolution of 2014, several regions of Ukraine declared independence:
- In March 2014, the governments of the Autonomous Republic of Crimea and the city of Sevastopol declared independence from Ukraine and asked to join the Russian Federation.  
- The Donetsk People's Republic was declared to be independent from Ukraine on 7 April 2014, comprising the territory of the Donetsk Oblast. There have been military confrontations between the Ukrainian Army and the forces of the Donetsk People's Republic when the Ukrainian Government attempted to reassert control over the oblast.
- The Lugansk Parliamentary Republic was proclaimed on 27 April 2014.  before being succeeded by the Lugansk People's Republic. The Lugansk forces have successfully occupied vital buildings in Lugansk since 8 April, and controlled the City Council, prosecutor's office, and police station since 27 April.  The Government of the Lugansk Oblast announced its support for a referendum, and granted the governorship to independence leader Valeriy Bolotov. 
What is now the Republic of Ireland is the only territory that has withdrawn from the United Kingdom proper. Ireland declared independence in 1916 and, as the Irish Free State, gained independence in 1922. Currently the United Kingdom has a number of secession movements:
- In Northern Ireland, Irish Republicans and Nationalists in general, have long called for the secession of Northern Ireland from the United Kingdom in order to join the Republic of Ireland. This is opposed by Unionists.
- In Scotland the Scottish National Party (SNP) campaigns for Scottish independence and direct Scottish membership of the European Union. It has representation at all levels of Scottish politics and forms the devolved Scottish Government. A number of nascent pro-independence parties have enjoyed only limited electoral success. The Scottish Green Party, the Scottish Socialist Party and the Scottish Enterprise Party are most widely publicised. However all independence movements/parties are opposed by Unionists. A referendum on independence, in which voters were asked "Should Scotland be an independent country?", took place in September 2014, and resulted in a victory for the "no" campaign as 55.3 percent of voters voted against independence. 
- In Wales, Plaid Cymru (Party of Wales) stands for Welsh independence within the European Union. It is also represented at all levels of Welsh politics and is the second largest party in the National Assembly of Wales.
- In Cornwall, supporters of Mebyon Kernow call for the creation of a Cornish Assembly and separation from England, giving the county significant self-government, whilst remaining within the United Kingdom as a fifth home nation.
- In England the now-disbanded Free England Party (FEP) campaigned for English independence.
Discussions and threats of secession often surface in American politics, and secession was declared during the American Civil War. However, in 1869 the United States Supreme Court ruled in Texas v. White, 74 U.S. 700 (1869) that unilateral secession was not permitted saying that the union between a state (Texas in the case before the bar) "was as complete, as perpetual, and as indissoluble as the union between the original States. There was no place for reconsideration or revocation, except through revolution or through consent of the States."  
On June 25, 1991, Croatia and Slovenia seceded from the Socialist Federal Republic of Yugoslavia. Bosnia and Herzegovina and Macedonia also declared independence, after which the federation broke up, causing the separation of the remaining two countries Serbia and Montenegro. Several wars ensued between FR Yugoslavia and seceding entities and among other ethnic groups in Slovenia, Croatia, Bosnia and Herzegovina, and later, Kosovo. Montenegro peacefully separated from its union with Serbia in 2006.
- List of historical autonomist and secessionist movements
- List of active autonomist and secessionist movements
- List of unrecognized countries
- List of U.S. state secession proposals
- List of U.S. county secession proposals
- City state
- Economic secession
- Nullification (U.S. Constitution)
- Schism (religion)
- Urban secession
- Balochistan Liberation Army
- Cape Party
- Conch Republic
- United States Declaration of Independence
- Essex Junto
- European Free Alliance
- Free State Project
- The Great Republic of Rough and Ready
- Hartford Convention
- League of the South
- New York City secession
- Orania, Northern Cape
- Republic of Kinney
- Republic of South Carolina
- Scottish Secession Church
- Secession of Quebec
- Second Vermont Republic
- South Carolina Exposition and Protest
- Texas Secession Movement
- Black Liberation Army
- Unrepresented Nations and Peoples Organization
- Allen Buchanan, "Secession", Stanford Encyclopedia of Philosophy, 2007.
- Pavkovic, Aleksandar; Radan, Peter (2013). The Ashgate Research Companion to Secession. Burlington, VT: Ashgate Publishing, Ltd. p. 3. ISBN 9780754677024.
- Pavkovic, Aleksandar; Radan, Peter (2007). Creating New States: Theory and Practice of Secession. Burlington, VT: Ashgate Publishing. p. 6. ISBN 9780754671633.
- Pavkovic, Aleksandar; Radan, Peter (2008). On the Way to Statehood: Secession and Globalisation. Burlington, VT: Ashgate Publishing, Ltd. p. 133. ISBN 9780754673798.
- Allen Buchanan, Secession: The Morality of Political Divorce From Fort Sumter to Lithuania and Quebec, West View Press, 1991.
- Butt, Ahsan I. (2017-11-15). Secession and Security: Explaining State Strategy against Separatists. Cornell Studies in Security Affairs. Ithaca, NY: Cornell University Press. ISBN 9781501713941.
- Allen Buchanan, How can We Construct a Political Theory of Secession?, paper presented October 5, 2006 to the International Studies Association.
- Anthony H. Birch, "Another Liberal Theory of Secession". Political Studies 32, 1984, 596–602.
- Jane Jacobs, Cities and the Wealth of Nations, Vintage, 1985.
- Frances Kendall and Leon Louw, After Apartheid: The Solution for South Africa, Institute for Contemporary Studies, 1987. One of several popular books they wrote about canton-based constitutional alternatives that include an explicit right to secession.
- Leopold Kohr, The Breakdown of Nations, Routledge & K. Paul, 1957
- Human Scale, Coward, McCann & Geoghegan, 1980.
- "Full text of "The writings of Thomas Jefferson;"". archive.org. Retrieved 12 August 2015.
- University of Technology, Sydney description of Aleksandar Pavkovic
- Aleksandar Pavkovic, Secession, Majority Rule and Equal Rights: a Few Questions, Macquarie University Law Journal, 2003.
- Steven Yates, "When Is Political Divorce Justified" in David Gordon, 1998.
- Allen Buchanan, Secession: The Morality of Political Divorce From Fort Sumter to Lithuania and Quebec, Chapter 3, pp. 87–123.
- Coggins, Bridget (2011-07-01). "Friends in High Places: International Politics and the Emergence of States from Secessionism". International Organization. 65 (3): 433–467. doi: 10.1017/S0020818311000105. ISSN 1531-5088.
- Santosh C. Saha, Perspectives on contemporary ethnic conflict, p. 63, Lexington Books, 2006 ISBN 0-7391-1085-3.
- Paul D. Elliot, The East Timor Dispute, The International and Comparative Law Quarterly, Vol. 27, No. 1 (Jan., 1978).
- James J. Fox, Dionisio Babo Soares, Out of the ashes: destruction and reconstruction of East Timor, p. 175, ANU E Press, 2003, ISBN 0-9751229-1-6
- Thomas D. Musgrave, Self-determination and national minorities, p. xiii, Oxford University Press, 2000 ISBN 0-19-829898-6
- Linz, Juan; Stepan, Alfred; Yadav, Yogendra (2007). 'Nation State' or 'State Nation': India in Comparative Perspective. Oxford University Press. pp. 81–82. ISBN 0-19-568368-4
- "UNPO: West Balochistan". unpo.org. Retrieved 12 August 2015.
- No Winner Seen in Somalia's Battle With Chaos New York Times, June 2, 2009
- The Transitional Federal Charter of the Somali Republic Archived 2009-03-25 at the Wayback Machine.: "The Somali Republic shall have the following boundaries. (a) North; Gulf of Aden. (b) North West; Djibouti. (c) West; Ethiopia. (d) South south-west; Kenya. (e) East; Indian Ocean."
- "The World Factbook". cia.gov. Retrieved 12 August 2015.
- The Signs Say Somaliland, but the World Says Somalia
- UN in Action: Reforming Somaliland's Judiciary
- SOUTH AFRICA: Cry of Secession TIME, Monday, May 11, 1953
- Secession Talked by Some Anti-Republicans, Saskatoon Star-Phoenix, 11 October 1960
- Launching Democracy in South Africa: The First Open Election, April 1994, R. W. Johnson, Lawrence Schlemmer, Yale University Press, 1996
- Party Wants the Cape to Secede", Business Day, December 24, 1993.
- Cape Party Website, Monday, May 11, 1953
- A Brief Survey of Swiss History, Switzerland Federal Department of Foreign Affairs.
- Gavin Hewitt (March 17, 2014). "Crimean parliament formally applies to join Russia". Bbc.com News. Retrieved April 20, 2014.
- "Парламент Крыма принял Декларацию о независимости АРК и г. Севастополя [Crimean parliament adopted the Declaration of Independence of the ARC and Sevastopol]" (in Russian). 11 March 2014. Archived from the original on 13 March 2014. Retrieved 12 March 2014.
- "Federalization supporters in Luhansk proclaim people's republic". TASS: World. Retrieved 12 August 2015.
- "Ukraine crisis: Pro-Russia activists take Luhansk offices". BBC News. 29 April 2014. Retrieved 18 January 2015.
- "Luhansk regional council backs referendum on region's status". kyivpost.com. Retrieved 6 May 2014.
- Smout, Alistair; MacLellan, Kylie; Holton, Kate (September 19, 2014). "Scotland stays in UK, but Britain faces change". Reuters – Special Report. Retrieved September 19, 2014.
- Texas v. White, 74 U.S. 700 (1868) at Cornell University Law School Supreme Court collection.
- Aleksandar Pavković, Peter Radan, Creating New States: Theory and Practice of Secession, p. 222, Ashgate Publishing, Ltd., 2007.
- Buchanan, Allen, Justice, Legitimacy, and Self-Determination: Moral Foundations for International Law (Oxford Political Theory), Oxford University Press, 2007.
- Buchanan, Allen, Secession: The Morality Of Political Divorce From Fort Sumter To Lithuania And Quebec, Westview Press, 1991.
- Coppieters, Bruno; Richard Sakwa, Richard (eds.), Contextualizing Secession: Normative Studies in Comparative Perspective, Oxford University Press, USA, 2003
- Dos Santos, Anne Noronha, Military Intervention and Secession in South Asia: The Cases of Bangladesh, Sri Lanka, Kashmir, and Punjab (Psi Reports), Praeger Security International, 2007.
- Gordon, David, Secession, State and Liberty, Transactions Publishers, 1998.
- Hannum, Hurst, Autonomy, Sovereignty, and Self-Determination: The Accommodation of Conflicting Rights, University of Pennsylvania Press, 1996.
- Hawes, Robert F., One Nation, Indivisible? A Study of Secession and the Constitution, Fultus Corporation, 2006.
- Jovanovic, Miodrag, Constitutionalizing Secession in Federalized States: A Procedural Approach, Ashgate Publishing, 2006.
- Kohen, Marcelo G. (ed.), Secession: International Law Perspectives, Cambridge University Press, 2006.
- Kohr, Leopold, The Breakdown of Nations, Routledge & K. Paul, 1957.
- Lehning, Percy, Theories of Secession, Routledge, 1998.
- Norman, Wayne, Negotiating Nationalism: Nation-Building, Federalism, and Secession in the Multinational State, Oxford University Press, USA, 2006.
- Orlov, Dimitry, Reinventing Collapse, New Society Books, 2008, ISBN 978-0-86571-606-3
- Pascalev, Mario, "Territory: An Account of the Territorial Authority of States." Dissertation, Bowling Green State University, VDM, 2009.
- Sorens, Jason, Secessionism: Identity, Interest, and Strategy, McGill-Queen's University Press, 2012.
- Sorens, Jason (2008). "Sessionism". In Hamowy, Ronald. The Encyclopedia of Libertarianism. Thousand Oaks, CA: SAGE; Cato Institute. pp. 455–56. doi: 10.4135/9781412965811.n277. ISBN 978-1-4129-6580-4. LCCN 2008009151. OCLC 750831024.
- Spencer, Metta, Separatism: Democracy and Disintegration, Rowman & Littlefield, 1998.
- Weller, Marc, Autonomy, Self Governance and Conflict Resolution (Kindle Edition), Taylor & Francis, 2007.
- Wellman, Christopher Heath, A Theory of Secession, Cambridge University Press, 2005..
- Secession And International Law: Conflict Avoidance-regional Appraisals, United Nations Publications, 2006.
|Look up secession in Wiktionary, the free dictionary.|
- Secession (Stanford Encyclopedia of Philosophy)
- Chisholm, Hugh, ed. (1911). " secession". Encyclopædia Britannica (11th ed.). Cambridge University Press.
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