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Borders Between Peoples and Nations

Learn how borders are drawn, how nationalism and colonialism shaped them, why splitting cultural groups causes conflict, and how to read border maps.

Practice this skill 20 min Borders between peoples and nations Leer en español
Key idea

What you'll learn

In plain words: borders are lines people agree on, and where they fall changes people's lives.

Think of a fence between two backyards. Someone decided where it goes. Country borders work the same way. People create them. Sometimes they follow rivers and mountains. Sometimes they are straight lines drawn on a map. Where those lines fall decides:

  • which government people live under;
  • which language their schools teach;
  • sometimes, whether they live in peace.

In this lesson you will learn:

  • the difference between natural (physical) and political borders, including geometric borders;
  • the meaning of nation, state, and nation-state;
  • how nationalism has both united and broken apart countries;
  • how colonial borders and partition created lasting conflict;
  • how to read border maps, cultural-region maps, and latitude/longitude.

How it shows up on the GED: you might see a map of real or fictional countries. Its legend may show languages or religions. You might also read a primary source, such as Woodrow Wilson's Fourteen Points, or a short passage about a border dispute. Questions ask you to:

  • classify a border;
  • spot where political borders and cultural regions don't match;
  • connect causes and effects;
  • apply a principle from one source to a map.
Words to know

Key terms

  • border (boundary) — a line separating countries, states, or regions.
  • natural (physical) border — follows a physical feature (the Rio Grande; the Pyrenees).
  • political border — agreed on by people, often in a treaty, whether or not it follows a feature.
  • geometric border — a straight line, often along latitude or longitude (the 49th parallel).
  • nation — a people who share a culture, language, history, and identity (the Kurds).
  • state — an independent country with borders, a population, and its own government (Mexico).
  • nation-state — a state whose people are mainly one nation (Japan, Iceland).
  • stateless nation — a nation without its own state (the Kurds).
  • nationalism — strong loyalty to one's nation and the desire for it to have its own state.
  • self-determination — the right of a people to choose their own government.
  • colonialism — one country ruling another territory and its people (British rule in India).
  • partition — dividing a territory into separate states (India and Pakistan, 1947).
  • cultural region — an area where people share a trait such as language or religion.
  • ethnic group — people who share ancestry, culture, and often language.
  • disputed territory — land claimed by more than one country (Kashmir).
  • latitude / longitude — imaginary lines measuring distance north/south of the equator and east/west of the prime meridian.

All Social Studies words in the glossary

Natural borders vs. political borders

In plain words: some borders follow nature, like a river; others are lines people simply draw.

Natural borders follow features you could see from an airplane:

  • Rivers: the Rio Grande (U.S.–Mexico); the Ohio and Mississippi Rivers (many U.S. state lines).
  • Mountains: the Pyrenees (France–Spain); the Andes (much of Chile–Argentina).
  • Lakes and seas: the Great Lakes (U.S.–Canada).

Advantages: easy to see, and often easier to defend. Problems: rivers change course. And it can be unclear exactly where a mountain range divides.

Political borders are agreed on by people. This usually happens through treaties or after wars. A common type is the geometric border — a straight line along latitude or longitude:

  • The 49th parallel forms much of the U.S.–Canada border. Treaties set it in 1818 and 1846.
  • Colorado and Wyoming are bounded almost entirely by lines of latitude and longitude.
  • Much of the Egypt–Sudan border follows 22°N.
Schematic latitude and longitude grid of part of North America from 35°N to 51°N and 125°W to 90°W, showing only some borders. The U.S.-Canada border runs along 49°N from about 123°W (near the Pacific) east to about 95°W (Lake of the Woods). Wyoming is a rectangle from 41°N to 45°N and about 104°W to 111°W. Colorado is a rectangle from 37°N to 41°N and about 102°W to 109°W. All of these are geometric borders that follow lines of latitude and longitude. Geometric borders follow latitude and longitude (schematic) 37°N 41°N 45°N 49°N 125°W 120°W 115°W 110°W 105°W 100°W 95°W 90°W U.S.–Canada border along 49°N CANADA UNITED STATES WYOMING COLORADO about 104°W to 111°W about 102°W to 109°W Only these borders are drawn; coastlines and other states are left out.

Advantages: simple to draw on maps. Problems: they often ignore the land and the people. They can cut across farms, towns, and cultural groups. Imagine a line drawn through the middle of your street, putting your neighbors in another country.

Three panels comparing border types. River border: a winding river separates Country X and Country Y; it is a natural border, like the Rio Grande. Mountain border: a mountain crest separates the two countries; it is a natural border, like the Pyrenees. Geometric border: a perfectly straight line along a line of latitude, 22°N, separates them; it is a political, geometric border, like much of the Egypt-Sudan border. Natural borders wiggle; geometric borders are straight. River border Country X Country Y natural e.g. Rio Grande Mountain border Country X Country Y natural e.g. Pyrenees Geometric border Country X Country Y political: straight line e.g. Egypt–Sudan at 22°N border on the crest 22°N Natural borders wiggle with the land; geometric borders are straight.

Example: A border is described as "following the 38th parallel." That is a geometric border, because it follows a line of latitude. In 1945, Korea was divided near the 38th parallel into Soviet- and U.S.-occupied zones. These zones later became North and South Korea.

Nations, states, and nationalism

In plain words: a nation is a group of people who feel they belong together; a state is a country with a government.

A nation is a group of people. They share a culture, language, or history. A state is a country. When the two match, you get a nation-state. When they don't, trouble can follow. Think of a family split between two houses on different streets, each with different house rules.

Nationalism can unite. Nationalism is strong loyalty to one's nation. In the 1800s, it brought together people who shared a language and culture but lived in many small states:

  • Italy unified between 1861 and 1870.
  • Germany unified in 1871 under Prussian leadership.

Nationalism can divide. Empires that ruled many peoples were pulled apart:

  • Austria-Hungary and the Ottoman Empire broke up after World War I. New states such as Poland, Czechoslovakia, and Yugoslavia appeared.
  • Yugoslavia itself broke apart in the 1990s. Wars broke out between Serbs, Croats, Bosnians, and others.

Self-determination is the right of a people to choose their own government. In January 1918, President Woodrow Wilson's Fourteen Points called for redrawing Italy's borders "along clearly recognizable lines of nationality." They also called for an independent Poland made of "territories inhabited by indisputably Polish populations." In practice, peoples in Europe were very mixed. Almost every new border left some minorities on the "wrong" side.

Stateless nations. The Kurds are tens of millions of people. They live mainly where Turkey, Iraq, Iran, and Syria meet. The Treaty of Sèvres (1920) promised them a possible state. But the Treaty of Lausanne (1923) replaced it without one. The Kurds remain the largest nation without a state.

Three schematic panels comparing nations and states. Nation-state, example Japan: one state border around one nation, all one pattern. Multinational state, example Austria-Hungary: one state border containing several nations shown as different patterns. Stateless nation, example the Kurds: one nation, shaded red, spreads across the meeting area of four states, Turkey, Syria, Iraq and Iran, but has no state of its own. Shapes are schematic, not real outlines. Nation-state one nation = one state e.g. Japan Multinational state many nations, one state e.g. Austria-Hungary Stateless nation one nation, no state e.g. the Kurds Schematic shapes, not real outlines. Solid line = state border; shading = nation (people). Nation A Nation A Nation B Nation C Turkey Iran Syria Iraq Kurds

Colonial borders and partition

In plain words: many borders were drawn by outside powers who ignored where peoples lived, and conflict often followed.

Many of today's borders were drawn by outside powers. Picture strangers dividing up your town without asking anyone who lives there.

Africa. At the Berlin Conference (1884–1885), European powers set rules for dividing Africa among themselves. No African rulers were invited. Over the next decades, colonial borders were often straight lines. Others followed rivers that Europeans had mapped. The results:

  • Some ethnic groups were split between two or more colonies.
  • Some rival groups were combined in one colony.
  • African countries became independent mostly in the 1950s–1970s. They generally kept the colonial borders, along with the tensions built into them.

The Middle East. After World War I, Britain and France divided much of the Ottoman Empire. They created territories such as Iraq, Syria, Lebanon, and Palestine. The borders often cut across ethnic and religious groups.

South Asia. In 1947, Britain partitioned — divided — India into two states: Hindu-majority India and Muslim-majority Pakistan. The borders were drawn in about five weeks. The man who drew them was a lawyer who had never been to India. More than 10 million people migrated. Hundreds of thousands were killed in violence. Kashmir is still disputed. East Pakistan became Bangladesh in 1971.

Pattern to remember: borders drawn quickly, by outsiders, without regard to where peoples live → mismatches between nations and states → migration, conflict, and disputed territory.

Timeline from 1880 to 1980 of events that shaped borders: 1884 to 1885, Berlin Conference divides Africa with no Africans present; 1918, Wilson's Fourteen Points call for self-determination; 1920, Treaty of Sèvres offers the Kurds a possible state; 1923, Treaty of Lausanne replaces it with no Kurdish state; 1947, partition of British India into India and Pakistan; 1950s to 1970s, most African colonies become independent and keep colonial borders; 1971, East Pakistan becomes Bangladesh. 1880 1900 1920 1940 1960 1980 1884–85 Berlin Conference 1918 Fourteen Points 1920 Sèvres: Kurdish state possible 1923 Lausanne: no Kurdish state 1947 Partition of India 1971 Bangladesh 1950s–1970s: most African colonies independent, colonial borders kept Key events that drew today's borders

Reading border and cultural-region maps

Map of a fictional region with a latitude/longitude grid from 20°E to 32°E and 8°N to 16°N. Three countries: ARVALIA in the north-west, BONTARA in the south-west, and CORIM in the east. The border between Arvalia and Bontara is a perfectly straight line along 12°N latitude. The border between Arvalia and Corim follows the Selu River, which runs north to south near 27°E to 28°E. The border between Bontara and Corim follows the crest of the Tarn Mountains, running south from about 12°N, 27.5°E to 8°N, 28.4°E. Main languages: Mira is spoken in northern Arvalia (north of about 14°N); Dosa is spoken in a band from about 13.4°N to 10.6°N and 21°E to 26°E, so the Dosa area is cut in two by the straight 12°N border, with part in Arvalia and part in Bontara; Tey is spoken in southern Bontara (south of about 10.2°N); Korri is spoken throughout Corim. 20°E 22°E 24°E 26°E 28°E 30°E 32°E 8°N 10°N 12°N 14°N 16°N ARVALIA BONTARA CORIM Selu River Tarn Mountains Legend National border River Mountains Main language spoken Mira Dosa Tey Korri The Kessa Region (fictional)

In plain words: border maps often have two layers — lines for borders and colors for groups of people. Compare them.

GED maps about borders often show two layers:

  • political borders (lines);
  • cultural regions (colors or patterns for language, religion, or ethnic group).

How to read them:

  1. Read the title and legend. Find which symbol means a border. Find which patterns mean cultural groups.
  2. Classify each border. Does it follow a river or mountain (natural)? Or is it a straight line (geometric)?
  3. Compare the layers. Does any cultural region cross a border? Then that group is divided. Does any country contain several groups? Then it is multinational.
  4. Use the grid. Latitude lines are horizontal and labeled N or S. Longitude lines are vertical and labeled E or W.

Example (Kessa Region map): The Arvalia–Bontara border follows 12°N. That is a geometric border. It cuts the Dosa language area in two. The Arvalia–Corim border follows the Selu River. The Bontara–Corim border follows the Tarn Mountains. Both are natural borders, and they match the Korri language area.

Worked example

Example 1: Using latitude and longitude on a border map

Map of a fictional region with a latitude/longitude grid from 20°E to 32°E and 8°N to 16°N. Three countries: ARVALIA in the north-west, BONTARA in the south-west, and CORIM in the east. The border between Arvalia and Bontara is a perfectly straight line along 12°N latitude. The border between Arvalia and Corim follows the Selu River, which runs north to south near 27°E to 28°E. The border between Bontara and Corim follows the crest of the Tarn Mountains, running south from about 12°N, 27.5°E to 8°N, 28.4°E. Main languages: Mira is spoken in northern Arvalia (north of about 14°N); Dosa is spoken in a band from about 13.4°N to 10.6°N and 21°E to 26°E, so the Dosa area is cut in two by the straight 12°N border, with part in Arvalia and part in Bontara; Tey is spoken in southern Bontara (south of about 10.2°N); Korri is spoken throughout Corim. 20°E 22°E 24°E 26°E 28°E 30°E 32°E 8°N 10°N 12°N 14°N 16°N ARVALIA BONTARA CORIM Selu River Tarn Mountains Legend National border River Mountains Main language spoken Mira Dosa Tey Korri The Kessa Region (fictional)

Use the Kessa Region map.

Question: Which country lies entirely east of 27°E? A. Arvalia B. Bontara C. Corim D. None of them

Think aloud:

  1. "27°E is a vertical line. I find 26°E and 28°E along the bottom and picture 27°E halfway between them."
  2. "Arvalia and Bontara stretch west to 20°E, so they are not entirely east of 27°E."
  3. "Corim begins at the Selu River and Tarn Mountains, which are all at about 27°E or farther east."

Answer: C, Corim. Remember: east/west questions use longitude, the numbers along the bottom.

Worked example

Example 2: Interpreting a primary source

Read Wilson's Point X: "The peoples of Austria-Hungary, whose place among the nations we wish to see safeguarded and assured, should be accorded the freest opportunity to autonomous development."

Question: What does Wilson most likely want for the peoples of Austria-Hungary?

Think aloud:

  1. "Autonomous means self-governing. Development here means growth as a people."
  2. "'The freest opportunity to autonomous development' means the different peoples should be able to govern themselves. Czechs and Slovaks are examples."
  3. "This fits the principle of self-determination."
  4. "I'll reject any choice saying Austria-Hungary should be stronger or more united. Wilson stresses the peoples, not the empire."

Answer: Wilson supports self-government for the nationalities inside the empire. After the war, Austria-Hungary was broken up into several new states.

Worked example

Example 3: Cause and effect with colonial borders

Read: "At the Berlin Conference of 1884–1885, European leaders agreed on rules for claiming African land. No Africans attended. Many later colonial borders split ethnic groups or grouped rivals together. After independence, several countries faced civil wars between groups."

Question: Which statement best describes the chain of events?

Think aloud:

  1. "Cause: Europeans drew borders without Africans present, so the borders ignored where groups lived."
  2. "Effect: borders split some groups and joined rivals."
  3. "Further effect: tensions led to civil wars after independence."
  4. "A trap answer might say Africans chose their own borders. The passage says no Africans attended."
Cause and effect chain about colonial borders in Africa. Cause: at the Berlin Conference of 1884 to 1885, European leaders set rules for claiming Africa, and no Africans attended. Effect: colonial borders split some ethnic groups and grouped rivals together. Next: at independence the new countries kept those borders. Further effect: tensions led to civil wars in several countries. Cause Berlin Conference 1884–85; no Africans present Effect borders split some groups and joined rivals Then independence: colonial borders kept Further effect tensions, civil wars in several countries Borders drawn by outsiders → mismatch with peoples → conflict Trap: "Africans chose their own borders" contradicts the passage.

Answer: Borders drawn by outsiders without regard to ethnic groups contributed to later conflicts.

Worked example

Example 4: Data about a divided group

A table shows Dosa speakers in the Kessa Region: 1,200,000 in Arvalia and 800,000 in Bontara.

Question: What percent of all Dosa speakers live in Arvalia?

Think aloud:

  1. "Total Dosa speakers: 1{,}200{,}000 + 800{,}000 = 2{,}000{,}000."
  2. "Part ÷ whole: \dfrac{1{,}200{,}000}{2{,}000{,}000} = 0.6."
  3. "Times 100 = 60%."
  4. "So a large minority, 40%, live across the border in Bontara. A split like that can fuel demands to redraw a border."
Bar showing all 2,000,000 Dosa speakers in the fictional Kessa Region split by the 12°N border: 1,200,000 in Arvalia, which is 60 percent, and 800,000 in Bontara, which is 40 percent. 1,200,000 divided by 2,000,000 equals 0.6, or 60 percent. Dosa speakers, Kessa Region (fictional data) Arvalia 1,200,000 (60%) Bontara 800,000 (40%) 12°N border total = 2,000,000 part ÷ whole: 1,200,000 ÷ 2,000,000 = 0.6 = 60%

Answer: 60%. Numbers can show how badly a border divides a people.

Common mistake

Common mistakes

  • Calling every straight line "natural." Wrong: "The 49th parallel is a natural border." Right: it is a line of latitude, a geometric border.
  • Mixing up nation and state. Wrong: "The Kurds are a state." Right: they are a nation without a state.
  • Swapping latitude and longitude. Wrong: reading a horizontal line labeled 12°N as 12°E. Right: horizontal = latitude (N/S); vertical = longitude (E/W).
  • Assuming borders reflect where people live. Wrong: "Each country has one language group." Right: compare the cultural layer with the border layer; mismatches are common.
  • Thinking nationalism only divides. Wrong: "Nationalism always breaks countries apart." Right: it unified Italy and Germany and broke up Austria-Hungary and Yugoslavia.
  • Reversing cause and effect. Wrong: "The Kashmir conflict caused partition." Right: partition (1947) came first; the Kashmir dispute followed.
Test strategy

GED strategy

  • Read the legend twice: once for border lines and once for cultural shading. Many questions depend on comparing the two.
  • Trace each border with your eyes. Does it wiggle (river or mountains, natural) or run straight (geometric)?
  • For primary sources, find the key phrase that states the principle (for example, "lines of nationality"). Restate it simply. Then apply it.
  • Beware of word traps. "Clearly recognizable lines" in Wilson's text means lines of nationality, not lines of latitude.
  • Use timelines in your head: colonial rule → borders drawn → independence → conflict or migration.
  • Eliminate extremes such as "ended all conflict" or "every group was united." History rarely works that neatly.
  • Time: map questions take longer. Budget about 90 seconds. Flag any you need to revisit.

Check yourself

Borders between peoples and nations
How Borders Are Drawn

(1) A border is a line that marks where one country, state, or region ends and another begins. Some borders follow natural features, such as rivers, mountain ranges, lakes, or deserts. These are called natural, or physical, borders. For example, part of the border between the United States and Mexico follows the Rio Grande, and the Pyrenees Mountains separate France and Spain.

(2) Other borders are political borders that people agree on, often after a war or in a treaty, even where no physical feature exists. Some of these are geometric borders: straight lines that often follow a line of latitude or longitude. Much of the border between the United States and Canada follows the 49th parallel, the line of latitude 49° north.

(3) Natural borders are easy to see and can be easier to defend, but rivers can change course and mountains can be hard to divide exactly. Geometric borders are simple to draw on a map, but they often ignore the land and the people. A straight line can cut through a farm, a town, or a group of people who share a language and culture.

According to paragraph 1, which is an example of a natural border?

Answer choices
Hint

A natural border follows something in nature, such as a river or mountains.

Check yourself

Borders between peoples and nations
How Borders Are Drawn

(1) A border is a line that marks where one country, state, or region ends and another begins. Some borders follow natural features, such as rivers, mountain ranges, lakes, or deserts. These are called natural, or physical, borders. For example, part of the border between the United States and Mexico follows the Rio Grande, and the Pyrenees Mountains separate France and Spain.

(2) Other borders are political borders that people agree on, often after a war or in a treaty, even where no physical feature exists. Some of these are geometric borders: straight lines that often follow a line of latitude or longitude. Much of the border between the United States and Canada follows the 49th parallel, the line of latitude 49° north.

(3) Natural borders are easy to see and can be easier to defend, but rivers can change course and mountains can be hard to divide exactly. Geometric borders are simple to draw on a map, but they often ignore the land and the people. A straight line can cut through a farm, a town, or a group of people who share a language and culture.

Based on paragraph 3, what is one disadvantage of geometric borders?

Answer choices
Hint

Paragraph 3 gives one advantage and one disadvantage of geometric borders. The disadvantage follows the word but.

Summary

  • Natural borders follow rivers, mountains, and lakes. Geometric borders are straight lines along latitude or longitude.
  • A nation is a people; a state is a country; a nation-state is both. The Kurds are a nation without a state.
  • Nationalism unified Italy (1861–1870) and Germany (1871) but broke up Austria-Hungary, the Ottoman Empire, and Yugoslavia.
  • Wilson's Fourteen Points (1918) promoted self-determination: borders along lines of nationality.
  • Colonial borders (Berlin Conference, 1884–1885) and partition (India, 1947) often split peoples. This caused migration and conflict.
  • On border maps, compare political lines with cultural regions. Read latitude (N/S) and longitude (E/W) carefully.
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