Loadingโฆ
Nation-states, sovereignty, types of boundaries, centripetal/centrifugal forces, and gerrymandering
Learn step-by-step with practice exercises built right in.
Political geography studies how POLITICAL POWER is organized in space โ how borders are drawn, how states function, why they form and fall apart, and how political units interact. Every map of the world is also a political document.
These three terms are often confused but have precise geographic meanings:
State โ an INDEPENDENT political unit with a defined territory, a permanent population, a functioning government, and the capacity to engage in foreign relations (recognized internationally). The world has ~195 sovereign states. Examples: France, Brazil, Japan, Nigeria. Note: in U.S. usage, "state" can also mean a sub-national unit (Texas, California), but in international political geography "state" = sovereign country.
Nation โ a CULTURAL group with shared identity (language, religion, ethnicity, history) who often want their own state. Examples: Kurds (~30 million, no state), Catalans (in Spain), Basques (Spain/France), Quebecois (Canada), Tibetans (China), Palestinians.
Nation-state โ when a NATION and a STATE coincide; the political boundaries match the cultural-ethnic group. Few states are pure nation-states; most are MULTI-NATIONAL. Closest examples: Japan (~98% ethnic Japanese), Iceland, Portugal, Korea (each Korea internally homogeneous though divided).
Multinational state โ contains MULTIPLE nations within its borders. Examples: United Kingdom (English, Scottish, Welsh, Northern Irish), Belgium (Flemish and Walloon), Switzerland (German, French, Italian, Romansh), Canada (English-speaking, French-speaking Quebec, Indigenous), India (hundreds of linguistic and ethnic groups), Russia, China.
Distinguish between a state, a nation, and a nation-state, and give a clear example of each.
State = an INDEPENDENT political unit with a defined territory, a permanent population, a functioning government, and the capacity to engage in foreign relations (recognized internationally as a sovereign country). There are about 195 of them. Examples: France, Brazil, Nigeria, Japan.
Nation = a CULTURAL GROUP with shared identity โ language, religion, ethnicity, history โ who often want their own political state. A nation may or may not have its own state. Examples: the Kurds (~30 million, divided across Turkey, Syria, Iraq, Iran โ a "stateless nation"); Catalans (in Spain); Basques (in Spain and France); the Palestinians.
Review key concepts with our flashcard system
Explore more AP Human Geography topics
Stateless nation โ a nation WITHOUT its own state. Largest examples: Kurds (~30 million, divided across Turkey, Syria, Iraq, Iran); Palestinians; Roma (Romani people of Europe); historically the Jewish people before 1948; Tibetans; Uyghurs.
Sovereignty is the supreme authority of a state over its territory. International recognition matters: Taiwan operates independently but is recognized by only ~12 states because most countries follow the People's Republic of China's "One China" policy. Kosovo declared independence in 2008 but is recognized by ~100 of 193 UN member states.
Geographers classify boundaries by HOW THEY WERE DRAWN:
Antecedent boundary โ drawn BEFORE the cultural landscape developed in the area. Example: the U.S.-Canada border along the 49th parallel through largely empty land in 1818.
Subsequent boundary โ drawn THROUGH a developed cultural landscape, accommodating existing groups. Example: the border between Northern Ireland and the Republic of Ireland (1921), drawn to follow Protestant/Catholic population distributions.
Superimposed boundary โ drawn by an outside power, often IGNORING existing cultural groups. Example: most African borders drawn by European colonial powers at the 1884โ85 Berlin Conference, splitting ethnic groups (e.g., the Ewe across Ghana and Togo) and forcing rivals together (Hutu and Tutsi in Rwanda; Sudan; Nigeria).
Relict boundary โ no longer functions as a political boundary but its EFFECTS remain visible. Example: the former East-West Germany border; the boundary of the former British Raj in South Asia.
Geometric boundary โ straight lines drawn by mathematics (latitude, longitude). Common in colonial Africa and the American West.
Physical boundary โ follows natural features (rivers, mountains, deserts). Rio Grande between U.S. and Mexico; Pyrenees between France and Spain; Andes between Chile and Argentina.
The SHAPE of a state affects its governance, communication, and defense:
Compact state โ roughly circular; short distance from center to any border. Easy to govern, defend, and unify. Examples: Poland, France, Uruguay.
Elongated (attenuated) state โ long and narrow; difficult to govern; transportation challenging. Examples: Chile (4,300 km long), Norway, Vietnam, Italy.
Prorupted state โ mostly compact but with a long extension. Examples: Thailand (Malay Peninsula extension), Namibia (Caprivi Strip), Afghanistan (Wakhan Corridor โ created to keep British India and Russia from sharing a border).
Fragmented state โ composed of separate pieces. Examples: Indonesia (~17,000 islands), Philippines (~7,600), Japan, U.S. (with Alaska and Hawaii).
Perforated state โ completely surrounds another state. Examples: South Africa surrounds Lesotho; Italy surrounds Vatican City and San Marino.
Landlocked state โ no direct ocean access. ~44 countries. Examples: Switzerland, Mongolia, Bolivia, Paraguay, Ethiopia, Mali, Uganda. Landlocked countries often face economic disadvantages, depending on neighbors for port access.
States are held together by centripetal forces (binding people to the state) and pulled apart by centrifugal forces (dividing the state):
Centripetal forces:
Centrifugal forces:
When centrifugal forces dominate, states can fragment. Recent examples:
Active separatist movements today include Catalan independence (Spain), Scottish independence (UK), Quebec sovereignty (Canada โ diminished but persistent), Kurdish autonomy (Turkey/Syria/Iraq), Tibetan and Uyghur movements (China), West Papua (Indonesia).
Nation-state = a state in which the POLITICAL BOUNDARIES of the state COINCIDE with the cultural-ethnic boundaries of a nation โ one nation, one state. True nation-states are RARE; most modern states are multi-national. Closest examples: Japan (~98% ethnic Japanese, sharing language, religion, and history), Iceland, Portugal, North and South Korea (each internally homogeneous though the nation is divided).
Why this matters: The mismatch between nations and states is one of the largest sources of political conflict in the world. Stateless nations (Kurds, Palestinians, Tibetans) seek statehood; multinational states (USSR, Yugoslavia, Sudan) sometimes break apart along national lines.
Define each of the following boundary types and give an example: antecedent, subsequent, superimposed, relict.
Antecedent boundary: Drawn BEFORE the cultural landscape developed significantly in the area. The boundary preceded settlement and shaped the development that followed. Example: the U.S.-Canada border along the 49th parallel west of the Lake of the Woods, drawn in 1818 through largely empty land that was then settled afterward according to the new boundary.
Subsequent boundary: Drawn AFTER and THROUGH a developed cultural landscape, attempting to ACCOMMODATE existing cultural, ethnic, religious, or linguistic groups. Example: the border between Northern Ireland and the Republic of Ireland (1921), drawn to follow the Protestant/Catholic population distribution and create a Protestant majority in Northern Ireland.
Superimposed boundary: Drawn by an OUTSIDE POWER, often IGNORING the existing cultural landscape. Frequently produces conflict because cultural groups are split or hostile groups forced together. Example: most AFRICAN borders drawn by European colonial powers at the 1884โ85 BERLIN CONFERENCE โ they split the Ewe across Ghana and Togo, the Yoruba across Nigeria/Benin/Togo, and forced rivals like the Hutu and Tutsi together inside Rwanda. The borders inherited at independence in the 1960s have been a source of conflict ever since.
Relict boundary: A boundary that NO LONGER FUNCTIONS as a political boundary, but whose effects remain VISIBLE in the cultural, economic, or built landscape. Example: the former EAST-WEST GERMANY border (1949โ1990) โ even though political reunification happened in 1990, decades of separate development left differences in architecture, infrastructure, voting patterns, and economic conditions that are still visible today. Other examples: the former British Raj boundary in South Asia; Hadrian's Wall in Britain.
A fifth common type, GEOMETRIC boundary, follows mathematical lines (latitude, longitude) โ common in colonial Africa and the American West. PHYSICAL boundaries follow natural features (rivers, mountains).
How does the SHAPE of a state affect its governance, defense, and economic integration? Give one example each of a compact, elongated, fragmented, and landlocked state and discuss the geographic challenges each faces.
Compact state โ example: Poland.
Elongated state โ example: Chile.
Fragmented state โ example: Indonesia.
Landlocked state โ example: Bolivia.
General principle: Compact states have the FEWEST geographic challenges; elongated, fragmented, and landlocked states face structural disadvantages that good policy and infrastructure can mitigate but cannot eliminate. Switzerland's success despite being landlocked demonstrates that geography is destiny only PROBABILISTICALLY โ institutions and policy matter enormously.
Explain the difference between centripetal and centrifugal forces. List three of each, and use them to explain why Yugoslavia broke apart in the 1990s.
Centripetal forces โ forces that BIND people to a state and unify it (think "centripetal = center-seeking"). Examples:
Centrifugal forces โ forces that DIVIDE a state and push it apart (think "centrifugal = fleeing the center"). Examples:
Why YUGOSLAVIA broke apart (1991โ2008):
Yugoslavia (1918โ2003) was a textbook MULTINATIONAL STATE comprising six constituent republics โ Slovenia, Croatia, Bosnia-Herzegovina, Serbia, Montenegro, and Macedonia โ and over a dozen ethnic and religious groups (Serbs, Croats, Bosniaks, Slovenes, Macedonians, Montenegrins, Albanians, Hungarians, etc.). It was held together by extraordinarily powerful CENTRIPETAL FORCES under Marshal Tito (1945โ1980):
After Tito's death (1980), CENTRIFUGAL FORCES began to dominate:
ETHNIC AND RELIGIOUS DIVISIONS that had been suppressed re-emerged powerfully. Slovenes (Catholic, German-influenced, prosperous), Croats (Catholic), Serbs (Orthodox), Bosniaks (Muslim), and Albanians (Muslim) all began to identify FIRST by ethnicity, second by Yugoslav citizenship.
ECONOMIC INEQUALITY between republics โ Slovenia and Croatia were prosperous and resented funding poorer southern republics; Serbia's leaders meanwhile asserted Serbian dominance over the federation.
WEAK CENTRAL LEADERSHIP โ Tito's successor structure was a rotating presidency that lacked his unifying authority. Slobodan Miloลกeviฤ in Serbia exploited Serbian nationalism to consolidate power, alarming non-Serb republics.
HISTORICAL GRIEVANCES โ memories of WWII atrocities (Croatian Ustaลกe killings of Serbs; Serbian Chetnik killings of Muslims and Croats) were revived and weaponized by nationalist politicians.
EXTERNAL CHANGES โ the collapse of communism across Eastern Europe (1989โ91) removed the ideological glue and emboldened nationalist movements.
SECESSION AND WAR โ Slovenia and Croatia declared independence in 1991, followed by Bosnia (1992) and Macedonia (1991). The wars that followed (Croatian War 1991โ95; Bosnian War 1992โ95; Kosovo War 1998โ99) killed an estimated 130,000+ people and produced the worst atrocities in Europe since WWII (Srebrenica massacre 1995, ethnic cleansing throughout Bosnia).
Final result: by 2008, Yugoslavia had become SEVEN independent states (Slovenia, Croatia, Bosnia-Herzegovina, Serbia, Montenegro, North Macedonia, Kosovo). Centrifugal forces โ ethnic, religious, economic, historical โ overwhelmed the centripetal bonds that Tito had maintained for 35 years.
Lesson: Centripetal and centrifugal forces are in CONSTANT TENSION in every multinational state. When centrifugal forces dominate, even apparently stable states can fragment quickly.
Compare the cases of South Sudan (independence 2011) and Catalonia (referendum 2017, independence not achieved). Why did one succeed and the other fail? What does this reveal about the political geography of secession in the 21st century?
South Sudan โ successful secession (July 9, 2011):
Sudan after independence (1956) inherited an arbitrary, superimposed colonial border that united the Arab-Muslim NORTH and the African-Christian/animist SOUTH in a single state. The two regions had:
Two devastating civil wars (1955โ1972, 1983โ2005) killed an estimated 2 MILLION people. After the second war, the Comprehensive Peace Agreement (2005) granted the South autonomy and a referendum on independence after six years.
In the 2011 referendum, 98.83% voted for independence. Key factors that ENABLED success:
South Sudan became the world's newest UN member state on July 14, 2011. (It has subsequently descended into its own civil war โ independence solved one problem and created others.)
Catalonia โ failed secession attempt (October 1, 2017):
Catalonia is an autonomous region of Spain with its own LANGUAGE (Catalan), distinct CULTURE, history of independence (medieval Crown of Aragon), and ~7.5 million people including ~16% of Spain's GDP.
Catalan nationalism intensified after the 2008 financial crisis (resentment that wealthier Catalonia was subsidizing poorer regions) and after the Spanish Constitutional Court struck down parts of a 2006 statute giving Catalonia greater autonomy.
On October 1, 2017, the Catalan regional government held an INDEPENDENCE REFERENDUM ruled illegal by Spain. Spanish national police suppressed polling stations using force, injuring over 1,000 people. Of votes cast, 92% were for independence โ but turnout was only ~43% because most opponents BOYCOTTED the illegal vote. On October 27, the Catalan parliament declared independence.
Spain responded by:
International response: the European Union explicitly REFUSED to recognize Catalan independence and supported Spanish constitutional order. NO COUNTRY recognized Catalonia.
Why Catalonia failed:
What does this reveal about 21st-century secession?
CONSENT MATTERS โ both internal and external. South Sudan's independence was negotiated and internationally sanctioned. Catalonia's was unilateral and rejected.
STATES DON'T LOSE TERRITORY VOLUNTARILY โ when a state actively opposes secession, secession only succeeds through war (Bangladesh from Pakistan 1971), state collapse (Yugoslavia, USSR), or international intervention (Kosovo from Serbia, partially recognized).
INTERNATIONAL RECOGNITION IS NEARLY DETERMINATIVE โ the EU's refusal to recognize Catalonia made secession unworkable. South Sudan's recognition by the UN, AU, and Western powers made it a fact.
THE INTERNATIONAL ORDER FAVORS STABLE BORDERS. The post-1945 international system has a strong PRESUMPTION against altering borders, codified in the UN Charter and African Union's respect for colonial boundaries. Secession is permitted only in exceptional cases (clear self-determination claim, prior agreement, state collapse).
REFERENDA ALONE ARE NOT ENOUGH. A vote without legal authorization or international support is a political statement, not a legal act of independence.
DEMOCRATIC STATES ARE NOT IMMUNE to secessionist pressures (UK with Scotland, Spain with Catalonia, Canada with Quebec, Belgium with Flanders), but their constitutional and democratic processes generally CONTAIN such pressures rather than producing breakup.
Other recent cases: Crimea (2014) was annexed by Russia after a referendum widely viewed as illegitimate; only Russia and a handful of allies recognize Russian sovereignty. East Timor achieved independence (2002) through a UN-supervised process after Indonesian withdrawal. Kosovo (2008) is recognized by ~100 of 193 UN member states โ partial success.
Conclusion: In the 21st century, successful secession requires a RARE COMBINATION of internal popular support, the parent state's consent (or its collapse), and international recognition. South Sudan had all three; Catalonia had only the first.