AP®︎ European History: Unit 8 Practice Test
Prepare for your quiz, test, or the AP exam with focused practice questions on Unit 8 of AP European History – 20th-Century Global Conflicts.
Questions List
Unit 8 (All Topics)
Question 1 Topic 8.1Easy
This question tests the following: KC-4.1.I
Which event marked the outbreak of World War I?
What You’re Being Tested On:
Explore the learning objectives taken directly from the College Board’s AP® European History Curriculum. Ensure you’re prepared for the exact topics covered on the AP® exam, in-class tests, and quizzes, and gain confidence in your mastery of the material.
Unit 8: 20th-Century Global Conflicts
This unit covers Europe’s involvement in World Wars I and II, the Russian Revolution, and the interwar crises. It examines how these global conflicts reshaped political ideologies, economies, and societies across Europe.

Topic 8.1: Contextualizing 20th-Century Global Conflicts
Learning Objective: Unit 8: Learning Objective A
Explain the context in which global conflict developed in the 20th century.
Review: KC-4.1
Total war and political instability in the first half of the 20th century gave way to a polarized state order during the Cold War and eventually to efforts at transnational union.
Review: KC-4.1.I
World War I, caused by a complex interaction of long- and short-term factors, resulted in immense losses and disruptions for both victors and vanquished.
Review: KC-4.1.II
The conflicting goals of the peace negotiators in Paris pitted diplomatic idealism against the desire to punish Germany, producing a settlement that satisfied few.
Review: KC-4.1.III
In the interwar period, fascism, extreme nationalism, racist ideologies, and the failure of appeasement resulted in the catastrophe of World War II, presenting a grave challenge to European civilization.
Review: KC-4.2
The stresses of economic collapse and total war engendered internal conflicts within European states and created conflicting conceptions of the relationship between the individual and the state, as demonstrated in the ideological battle between and among democracy, communism, and fascism.
Review: KC-4.3
During the 20th century, diverse intellectual and cultural movements questioned the existence of objective knowledge, the ability of reason to arrive at truth, and the role of religion in determining moral standards.
Review: KC-4.3.II
Science and technology yielded impressive material benefits but also caused immense destruction and posed challenges to objective knowledge.
Review: KC-4.4
Demographic changes, economic growth, total war, disruptions of traditional social patterns, and competing definitions of freedom and justice altered the experiences of everyday life.
Review: KC-4.4.I
The 20th century was characterized by large-scale suffering brought on by warfare and genocide, but also by tremendous improvements in the standard of living.

Topic 8.2: World War I
Thematic Focus: States and Other Institutions of PowerSOP
European states and nations developed governmental and civil institutions from 1450 to the present to organize society and consolidate political power, with a variety of social, cultural, and economic effects.
Learning Objective: Unit 8: Learning Objective B
Explain the causes and effects of World War I.
Historical Developments: KC-4.1.I
World War I, caused by a complex interaction of long- and short-term factors, resulted in immense losses and disruptions for both victors and vanquished.
Historical Developments: KC-4.1.I.A
A variety of factors—including nationalism, military plans, the alliance system, and imperial competition—turned a regional dispute in the Balkans into World War I.
Thematic Focus: Technological and Scientific InnovationTSI
Scientific and technological innovations have increased efficiency, improved daily life, and shaped human development and interactions, having both intended and unintended consequences.
Learning Objective: Unit 8: Learning Objective C
Explain how new technology altered the conduct of World War I.
Historical Developments: KC-4.1.I.B
New technologies confounded traditional military strategies and led to trench warfare and massive troop losses.
Thematic Focus: Interaction of Europe and the WorldINT
Motivated by a variety of factors, Europe's interaction with the world led to political, economic, social, and cultural exchanges that influenced both European and non-European societies.
Learning Objective: Unit 8: Learning Objective D
Explain how the developments of World War I changed political and diplomatic interactions between and among nations.
Historical Developments: KC-4.1.I.C
The effects of military stalemate, national mobilization, and total war led to protest and insurrection in the belligerent nations and eventually to revolutions that changed the international balance of power.
Historical Developments: KC-4.1.I.D
The war in Europe quickly spread to non-European theaters, transforming the war into a global conflict.
Historical Developments: KC-4.1.I.E
The relationship of Europe to the world shifted significantly with the globalization of the conflict, the emergence of the United States as a world power, and the overthrow of European empires.
Illustrative Examples specific knowledge students should know & demonstrate
- Machine gun
- Barbed wire
- Submarine
- Airplane
- Poison gas
- Tank
- Mutinies in armies
- Easter Rebellion in Ireland
- Russian Revolution
- Armenian Genocide
- Arab revolt against the Turks
- Japanese aggression in the Pacific and on the Chinese mainland
- Mandate system
- Creation of modern Turkey
- Dissolution of Austro-Hungarian Empire

Topic 8.3: The Russian Revolution and Its Effects
Thematic Focus: States and Other Institutions of PowerSOP
European states and nations developed governmental and civil institutions from 1450 to the present to organize society and consolidate political power, with a variety of social, cultural, and economic effects.
Learning Objective: Unit 8: Learning Objective E
Explain the causes and effects of the Russian Revolution.
Historical Developments: KC-4.2.I
The Russian Revolution created a regime based on Marxist–Leninist theory.
Historical Developments: KC-4.2.I.A
In Russia, World War I exacerbated long-term problems of political stagnation, social inequality, incomplete industrialization, and food and land distribution, all while creating support for revolutionary change.
Historical Developments: KC-4.2.I.B
Military and worker insurrections, aided by the revived Soviets, undermined the Provisional Government and set the stage for Lenin’s long-planned Bolshevik Revolution and establishment of a communist state.
Historical Developments: KC-4.2.I.C
The Bolshevik takeover prompted a protracted civil war between communist forces and their opponents, who were aided by foreign powers.
Historical Developments: KC-4.2.I.D.i
In order to improve economic performance, Lenin compromised communist principles and employed some free-market principles under the New Economic Policy.
Illustrative Examples specific knowledge students should know & demonstrate
- February/March Revolution
- Petrograd Soviet

Topic 8.4: Versailles Conference and Peace Settlement
Thematic Focus: States and Other Institutions of PowerSOP
European states and nations developed governmental and civil institutions from 1450 to the present to organize society and consolidate political power, with a variety of social, cultural, and economic effects.
Learning Objective: Unit 8: Learning Objective F
Explain how and why the settlement of World War I failed to effectively resolve the political, economic, and diplomatic challenges of the early 20th century.
Historical Developments: KC-4.1.II
The conflicting goals of the peace negotiators in Paris pitted diplomatic idealism against the desire to punish Germany, producing a settlement that satisfied few.
Historical Developments: KC-4.1.II.A
Wilsonian idealism clashed with postwar realities in both the victorious and the defeated states. Democratic successor states emerged from former empires and eventually succumbed to significant political, economic, and diplomatic crises.
Historical Developments: KC-4.1.II.B
The League of Nations, created to prevent future wars, was weakened from the outset by the nonparticipation of major powers, including the U.S., Germany, and the Soviet Union.
Historical Developments: KC-4.1.II.C
The Versailles settlement, particularly its provisions on the assignment of guilt and reparations for the war, hindered the German Weimar Republic's ability to establish a stable and legitimate political and economic system.
Historical Developments: KC-4.1.VI.B
The League of Nations distributed former German and Ottoman possessions to France and Great Britain through the mandate system, thereby altering the imperial balance of power and creating a strategic interest in the Middle East and its oil.
Illustrative Examples specific knowledge students should know & demonstrate
- Poland
- Czechoslovakia
- Hungary
- Yugoslavia
- Lebanon and Syria
- Iraq
- Palestine

Topic 8.5: Global Economic Crisis
Thematic Focus: Economic and Commercial DevelopmentsECD
Economic development, especially the development of capitalism, played an important role in Europe's history, often having significant social, political, and cultural effects.
Learning Objective: Unit 8: Learning Objective G
Explain the causes and effects of the global economic crisis in the 1920s and 1930s.
Historical Developments: KC-4.2.III
The Great Depression, caused by weaknesses in international trade and monetary theories and practices, undermined Western European democracies and fomented radical political responses throughout Europe.
Historical Developments: KC-4.2.III.A
World War I debt, nationalistic tariff policies, overproduction, depreciated currencies, disrupted trade patterns, and speculation created weaknesses in economies worldwide.
Historical Developments: KC-4.2.III.B
Dependence on post-World War I American investment capital led to financial collapse when, following the 1929 stock market crash, the United States cut off capital flows to Europe.
Historical Developments: KC-4.2.III.C
Despite attempts to rethink economic theories and policies and forge political alliances, Western democracies failed to overcome the Great Depression and were weakened by extremist movements.
Illustrative Examples specific knowledge students should know & demonstrate
- Keynesianism in Britain
- Cooperative social action in Scandinavia
- Popular Front policies in France
- National government in Britain
- Popular Fronts in France and Spain

Topic 8.6: Fascism and Totalitarianism
Thematic Focus: States and Other Institutions of PowerSOP
European states and nations developed governmental and civil institutions from 1450 to the present to organize society and consolidate political power, with a variety of social, cultural, and economic effects.
Learning Objective: Unit 8: Learning Objective H
Explain the factors that led to the development of fascist and totalitarian regimes in the aftermath of World War I.
Historical Developments: KC-4.2.II
The ideology of fascism, with roots in the pre-World War I era, gained popularity in an environment of postwar bitterness, the rise of communism, uncertain transitions to democracy, and economic instability.
Historical Developments: KC-4.2.II.A
Fascist dictatorships used modern technology and propaganda that rejected democratic institutions, promoted charismatic leaders, and glorified war and nationalism to attract the disillusioned.
Historical Developments: KC-4.2.II.B
Mussolini and Hitler rose to power by exploiting postwar bitterness and economic instability, using terror, and manipulating the fledgling and unpopular democracies in their countries.
Historical Developments: KC-4.2.II.C
Franco’s alliance with Italian and German fascists in the Spanish Civil War—in which the Western democracies did not intervene—represented a testing ground for World War II and resulted in authoritarian rule in Spain from 1936 to the mid-1970s.
Historical Developments: KC-4.2.II.D
After failures to establish functioning democracies, authoritarian dictatorships took power in central and eastern Europe during the interwar period.
Thematic Focus: Economic and Commercial DevelopmentsECD
Economic development, especially the development of capitalism, played an important role in Europe’s history, often having significant social, political, and cultural effects.
Learning Objective: Unit 8: Learning Objective I
Explain the consequences of Stalin’s economic policies and totalitarian rule in the Soviet Union.
Historical Developments: KC-4.2.I.D.ii
After Lenin’s death, Stalin undertook a centralized program of rapid economic modernization, often with severe repercussions for the population.
Historical Developments: KC-4.2.I.E
Stalin’s economic modernization of the Soviet Union came at a high price, including the liquidation of the kulaks (the land-owning peasantry) and other perceived enemies of the state, devastating famine in the Ukraine, purges of political rivals, and, ultimately, the creation of an oppressive political system.
Illustrative Examples specific knowledge students should know & demonstrate
- Radio
- Joseph Goebbels
- Leni Riefenstahl
- Architecture
- Cult of personality
- Poland
- Hungary
- Romania
- Collectivization
- Five Year Plan
- Great purges
- Gulags
- Secret police

Topic 8.7: Europe During the Interwar Period
Thematic Focus: States and Other Institutions of PowerSOP
European states and nations developed governmental and civil institutions from 1450 to the present to organize society and consolidate political power, with a variety of social, cultural, and economic effects.
Learning Objective: Unit 8: Learning Objective J
Explain how and why various political and ideological factors resulted in the catastrophe of World War II.
Historical Developments: KC-4.1.III.A
French and British fears of another war, American isolationism, and deep distrust between Western democratic, capitalist nations and the authoritarian, communist Soviet Union allowed fascist states to rearm and expand their territory.
Historical Developments: KC-4.1.III
In the interwar period, fascism, extreme nationalism, racist ideologies, and the failure of appeasement resulted in the catastrophe of World War II, presenting a grave challenge to European civilization.
Illustrative Examples specific knowledge students should know & demonstrate
- Remilitarization of the Rhineland
- Italian invasion of Ethiopia
- Annexation of Austria
- Munich Agreement and its violation
- Nazi–Soviet Non-Aggression Pact

Topic 8.8: World War II
Thematic Focus: Technological and Scientific InnovationTSI
Scientific and technological innovations have increased efficiency, improved daily life, and shaped human development and interactions, having both intended and unintended consequences.
Learning Objective: Unit 8: Learning Objective K
Explain how technology and innovation affected the course of World War II and the 20th century.
Historical Developments: KC-4.1.III.B
Germany’s Blitzkrieg warfare in Europe, combined with Japan’s attacks in Asia and the Pacific, brought the Axis powers early victories.
Historical Developments: KC-4.1.III.C
American and British industrial, scientific, and technological power, cooperative military efforts under the strong leadership of individuals such as Winston Churchill, the resistance of civilians, and the all-out military commitment of the USSR contributed critically to the Allied victories.
Historical Developments: KC-4.3.II.C
Military technologies made possible industrialized warfare, genocide, nuclear proliferation, and the risk of global nuclear war.
Illustrative Examples specific knowledge students should know & demonstrate
- Polish campaign of 1939
- Operation Barbarossa
- Surrender of France

Topic 8.9: The Holocaust
Thematic Focus: National and European IdentityNEI
Definitions and perceptions of regional, cultural, national, and European identity have developed and been challenged over time, with varied and often profound effects on the political, social, and cultural order in Europe.
Learning Objective: Unit 8: Learning Objective L
Explain how and why cultural and national identities were affected by war and the rise of fascist/totalitarian powers in the period from 1914 to the present.
Historical Developments: KC-4.1.III.D
Fueled by racism and anti-Semitism, Nazi Germany—with the cooperation of some of the other Axis powers and collaborationist governments—sought to establish a “new racial order” in Europe, which culminated with the Holocaust.
Historical Developments: KC-4.4.I.B
World War II decimated a generation of Russian and German men; virtually destroyed European Jewry; resulted in the murder of millions in other groups targeted by the Nazis including Roma, homosexuals, people with disabilities, and others; forced large-scale migrations; and undermined prewar class hierarchies.
Illustrative Examples specific knowledge students should know & demonstrate
- Nuremberg Laws
- Wannsee Conference
- Auschwitz and other death camps

Topic 8.10: 20th-Century Cultural, Intellectual, and Artistic Developments
Thematic Focus: Cultural and Intellectual DevelopmentsCID
The creation and transmission of knowledge, including the relationship between traditional sources of authority and the development of differing world views, had significant political, intellectual, economic, cultural, and social effects on European and world societies.
Learning Objective: Unit 8: Learning Objective M
Explain how the events of the first half of the 20th century challenged existing social, cultural, and intellectual understandings.
Historical Developments: KC-4.3.I.i
The widely held belief in progress characteristic of much of 19th-century thought began to break down before World War I.
Historical Developments: KC-4.3.I.A
When World War I began, Europeans were generally confident in the ability of science and technology to address human needs and problems despite the uncertainty created by the new scientific theories and psychology.
Historical Developments: KC-4.3.II.A
The challenge to the certainties of the Newtonian universe in physics opened the door to uncertainty in other fields by undermining faith in objective knowledge while also providing the knowledge necessary for the development of nuclear weapons and power.
Historical Developments: KC-4.4.I.A
World War I created a "lost generation" and fostered disillusionment and cynicism, while it transformed the lives of women, and democratized societies.
Historical Developments: KC-4.4.II.A
During the world wars, women became increasingly involved in military and political mobilization, as well as in economic production.
Illustrative Examples specific knowledge students should know & demonstrate
- Albert Einstein
- Werner Heisenberg
- Erwin Schrödinger
- Enrico Fermi
- Niels Bohr

Topic 8.11: Continuity and Changes in an Age of Global Conflict
Learning Objective: Unit 8: Learning Objective N
Explain how economic challenges and ideological beliefs influenced prior conceptions about the relationship between the individual and the state.
Review: KC-4.1
Total war and political instability in the first half of the 20th century gave way to a polarized state order during the Cold War and eventually to efforts at transnational union.
Review: KC-4.1.I
World War I, caused by a complex interaction of long- and short-term factors, resulted in immense losses and disruptions for both victors and vanquished.
Review: KC-4.1.II
The conflicting goals of the peace negotiators in Paris pitted diplomatic idealism against the desire to punish Germany, producing a settlement that satisfied few.
Review: KC-4.1.III
In the interwar period, fascism, extreme nationalism, racist ideologies, and the failure of appeasement resulted in the catastrophe of World War II, presenting a grave challenge to European civilization.
Review: KC-4.2
The stresses of economic collapse and total war engendered internal conflicts within European states and created conflicting conceptions of the relationship between the individual and the state, as demonstrated in the ideological battle between and among democracy, communism, and fascism.
Review: KC-4.3
During the 20th century, diverse intellectual and cultural movements questioned the existence of objective knowledge, the ability of reason to arrive at truth, and the role of religion in determining moral standards.
Review: KC-4.3.II
Science and technology yielded impressive material benefits but also caused immense destruction and posed challenges to objective knowledge.
Review: KC-4.4
Demographic changes, economic growth, total war, disruptions of traditional social patterns, and competing definitions of freedom and justice altered the experiences of everyday life.
Review: KC-4.4.I
The 20th century was characterized by large-scale suffering brought on by warfare and genocide, but also by tremendous improvements in the standard of living.