The World Wars and Cold War on CLEP Western Civilization II: 1914 to 1991 through European eyes

The World Wars and Cold War on CLEP Western Civilization II cover 1914 through 1991 from a European perspective, accounting for roughly 35 to 40 percent of the exam, around 42 to 48 of 120 questions. Most students over-prepare on battle details and under-prepare on the causal chains (alliance systems, conference outcomes, ideological shifts) that the exam actually tests.

For the broader study sequence, see the CLEP Western Civilization II pillar guide and the 30-hour study plan. Sibling era guides cover the Industrial Revolution and 19th-century Europe, the French Revolution and Napoleonic era, and absolutism and the Enlightenment.

Why the 20th century carries so much weight

The 20th century is the heaviest era after the 19th century. The World Wars and inter-war period together account for roughly 15 to 20 percent of the questions; the Cold War adds another 10 to 15 percent; post-1989 integration adds 5 percent at the edge. More than a third of the test sits in 77 years.

The exam frames this period as one continuous causal chain. WWI sets up Versailles, Versailles sets up Weimar's collapse, Weimar's collapse sets up Hitler, Hitler sets up WWII, WWII sets up the postwar division of Europe, and that division sets up the Cold War. Treating each event as isolated is the trap. The exam rewards readers who can articulate WHY one event produced the next.

When I took CLEP Western Civilization II for my degree at Thomas Edison State University, the 20th-century questions felt accessible on first read but punishing on careful reading. The surface familiarity (Hitler, the Berlin Wall, the Cuban Missile Crisis) hides that the exam asks about underlying causes, named conferences, and shifting alliances, not the popular-culture version of these events.

WWI causes: alliance systems, naval rivalry, and the July Crisis

The exam treats WWI's outbreak as the unraveling of a system Bismarck built in the 1870s and 1880s, not as a single assassination. The five underlying causes the exam expects you to name:

• The alliance system. Bismarck built treaties to isolate France after 1871. The Triple Alliance (Germany, Austria-Hungary, Italy, 1882) faced the Triple Entente (France, Russia, Britain, 1907). By 1914 a regional crisis could escalate continent-wide through treaty obligations.
• Militarism and the naval arms race. German Admiral Tirpitz's naval program (1898 onward) challenged British naval supremacy. Britain responded with the dreadnought in 1906.
• Imperialism. Competition for African and Asian colonies sharpened European rivalries. The Moroccan crises (1905, 1911) nearly produced a Franco-German war.
• Nationalism in the Balkans. Ottoman decline created a vacuum that Serbia, Austria-Hungary, and Russia tried to fill. Two Balkan Wars (1912 and 1913) preceded the main event.
• Mobilization timetables. Once Russia began general mobilization on July 30, 1914, Germany's Schlieffen Plan (a sweep through Belgium to knock out France before turning east) forced an immediate response.

The proximate cause was the assassination of Archduke Franz Ferdinand in Sarajevo on June 28, 1914 by Gavrilo Princip, a Bosnian Serb nationalist linked to the Black Hand. The July Crisis (Austria's ultimatum to Serbia, Russia's mobilization, Germany's declarations on Russia and France, British entry after Germany violated Belgian neutrality) compressed a generation of tension into five weeks. The College Board's official CLEP Western Civilization II exam page places the World Wars and Cold War within the post-1900 portion of the outline.

The exam will not ask about specific battles in detail. It will ask whether you can distinguish the proximate cause (Sarajevo) from the underlying chain above.

WWI key events: stalemate, withdrawal, and US entry

The war divides cleanly into two fronts and four phases.

The Western Front locked into trench warfare by late 1914. The Schlieffen Plan failed at the First Battle of the Marne in September 1914; both sides dug in along a line that barely moved for four years. The major battles (Verdun 1916, the Somme 1916, Passchendaele 1917) produced casualties on a scale Europe had never seen.

The Eastern Front was more fluid. Germany defeated Russia at Tannenberg in August 1914 and pushed deep into Russian territory. The war exposed the fragility of the Tsarist system; the February Revolution overthrew Tsar Nicholas II in March 1917, and the October Revolution brought the Bolsheviks to power in November.

Russian withdrawal was formalized at Brest-Litovsk in March 1918. Lenin accepted heavy territorial losses (Ukraine, the Baltics, Finland, parts of Belarus) to exit the war. The exam tests this as a turning point: Germany could now concentrate on the west, but US entry the year before had already shifted the long-term balance.

US entry in April 1917 followed German unrestricted submarine warfare and the Zimmermann Telegram (a German offer to Mexico to recover territory lost in 1848 for joining the war against the US). American troops arrived in numbers through 1918.

The war ended with the armistice of November 11, 1918. Wilson's Fourteen Points (January 1918) set out his vision: open diplomacy, self-determination, freedom of the seas, a League of Nations. The Fourteen Points framed the negotiations even though most were diluted in the final settlement.

Versailles 1919 and why the peace failed

The Paris Peace Conference of 1919 produced five treaties; the Treaty of Versailles with Germany is the one the exam tests. Its core provisions:

• Article 231, the war-guilt clause. Germany accepted sole responsibility, the legal basis for reparations and the cultural wound that fueled inter-war German politics.
• Reparations. A commission set Germany's bill at 132 billion gold marks in 1921. Most was never collectible, but the principle poisoned politics for a generation.
• Territorial losses. Germany lost Alsace-Lorraine to France, the Polish Corridor to the new Polish state (cutting off East Prussia), and all overseas colonies. The Rhineland was demilitarized.
• Military limits. Army capped at 100,000, navy reduced, air force forbidden, conscription banned.
• Redrawn map. Czechoslovakia and Yugoslavia were created; Poland restored; Austria-Hungary and the Ottoman Empire dissolved. Self-determination was applied unevenly, leaving large German minorities outside Germany (Sudetenland, Danzig) that Hitler would later exploit.
• The League of Nations. A permanent body to prevent future wars. The US Senate refused to ratify, so the US never joined, fatally weakening it.

The exam treats Versailles as a long-fuse cause of WWII. German resentment of the war-guilt clause and reparations, combined with the territorial losses and the demilitarized Rhineland, gave Hitler the grievances he ran on from 1923 onward.

Inter-war Europe: revolution, fascism, and the failure of liberalism

The 1918 to 1939 period is where readers lose the most exam points, because the regimes proliferate and the dates blur. Memorize this table cold:

Country	Regime	Leader	Year of power	Ideology
Soviet Union	Bolshevik / Communist	Lenin, then Stalin	1917 (Lenin), 1924 (Stalin consolidates)	Marxism-Leninism
Italy	Fascist	Mussolini	1922 (March on Rome)	Fascism, corporatism
Germany	Nazi (NSDAP)	Hitler	1933 (chancellor), 1934 (Fuhrer)	National Socialism
Spain	Nationalist	Franco	1939 (end of civil war)	Authoritarian, military, traditionalist
Weimar Germany	Parliamentary republic	rotating chancellors	1919 to 1933	Liberal democracy (failed)

The Russian Revolution and Bolshevik consolidation. The October Revolution of 1917 brought Lenin's Bolsheviks to power. The 1918 to 1921 civil war secured their hold. Lenin's New Economic Policy (NEP) from 1921 to 1928 allowed limited market activity to rebuild the economy. Stalin won the succession struggle after Lenin's death in 1924 and reversed the NEP. His first Five-Year Plan (1928 to 1932) launched forced industrialization. Collectivization between 1929 and 1933 killed millions, including in the Ukrainian famine (Holodomor). The Great Purges (1936 to 1938) eliminated the Old Bolshevik leadership through show trials, executions, and Gulag sentences.

Weimar Germany. The Weimar Republic (1919 to 1933) is the textbook case of a liberal democracy collapsing under economic and political pressure. The 1923 hyperinflation wiped out middle-class savings. Gustav Stresemann stabilized the currency with the Rentenmark, negotiated the Dawes Plan (1924) and Young Plan (1929) to restructure reparations, and brought Germany into the League of Nations in 1926. The 1929 Wall Street crash withdrew American loans and broke the stabilization. By 1932 the Nazis were the largest party in the Reichstag.

Italian Fascism. Mussolini's Fascists came to power through the March on Rome in October 1922, when King Victor Emmanuel III invited Mussolini to form a government. Mussolini built a one-party state by 1925, organized the economy through state-supervised employer-worker corporations (corporatism), and signed the 1929 Lateran Treaty with the Vatican.

German Nazism. Hitler became chancellor on January 30, 1933 through legal appointment by President Hindenburg. The Reichstag Fire in February 1933 produced an emergency decree suspending civil liberties. The Enabling Act in March 1933 let Hitler legislate without the Reichstag. By summer 1933 all other parties were banned. The Nuremberg Laws of 1935 stripped Jews of citizenship and codified racial categories. The Night of the Long Knives (June 1934) eliminated the SA leadership.

The Spanish Civil War (1936 to 1939) was the inter-war proxy contest. Republicans (backed by the Soviet Union and the International Brigades) faced Nationalists under Franco (backed by Nazi Germany and Fascist Italy, who used the conflict to test tanks and tactics for WWII). Franco's victory installed a 36-year dictatorship.

The exam tests this period as the failure of inter-war liberalism: the Versailles settlement, the League of Nations, and the Weimar constitutional order all collapsed under depression, nationalist mobilization, and the success of totalitarian alternatives.

WWII: alliances, conferences, and the major shifts

The exam emphasizes alliance politics and key conferences over battle tactics. The named events you must place chronologically:

Year	Event	Significance
1938	Munich Agreement	Britain and France conceded the Sudetenland; Chamberlain's "peace for our time" became the textbook case of appeasement.
1939	Molotov-Ribbentrop Pact	Soviet-German non-aggression pact with a secret protocol dividing Poland and Eastern Europe.
1939	Invasion of Poland	September 1; Britain and France declared war September 3. WWII begins.
1940	Fall of France	German blitzkrieg overwhelmed France in six weeks. Vichy regime installed.
1940	Battle of Britain	RAF defeated the Luftwaffe; Hitler abandoned Operation Sea Lion.
1941	Operation Barbarossa	June 22, German invasion of the Soviet Union; broke the Molotov-Ribbentrop Pact.
1941	Pearl Harbor	December 7; Germany declared war on the US four days later.
1942 to 1943	Stalingrad	Soviet victory turned the Eastern Front.
1944	D-Day	June 6, Allied invasion of Normandy opened the Western Front.
1945	Yalta Conference	February; FDR, Churchill, Stalin set postwar occupation zones.
1945	German surrender	May 8, VE Day.
1945	Potsdam Conference	July; Truman replaced FDR; the US-Soviet split was visible.
1945	Atomic bombs	Hiroshima August 6, Nagasaki August 9; Japanese surrender August 15.

The Pacific theater is tested lightly here. CLEP Western Civilization II is a European-perspective exam, so the Pacific war appears mainly as it interacts with European policy (Allied resource diversion, Soviet entry into the Pacific war, the atomic bombs as both end-of-war and opening-of-Cold-War events).

What the exam consistently tests: the shift from appeasement (Munich 1938) to Soviet-German alignment (Molotov-Ribbentrop 1939) to Soviet-Allied alignment (after Barbarossa 1941). Each shift must be named and dated. Conferences (Casablanca, Tehran, Yalta, Potsdam) are tested for outcomes, not for participants in detail.

The Cold War from a European perspective

The exam treats the Cold War as a European story first and a global story second. The named events cluster around three phases.

Phase 1: Origins and division (1945 to 1955). The wartime alliance collapsed during 1945 and 1946. Containment was articulated by George F. Kennan in the 1946 Long Telegram and the 1947 "X Article" in Foreign Affairs. The named policies followed in sequence:

• Truman Doctrine (March 1947). US aid to Greece and Turkey to resist communist pressure, generalized to a commitment to support "free peoples" everywhere.
• Marshall Plan (1948 onward). $13 billion in US aid to rebuild Western Europe. The Soviet Union forbade Eastern Bloc participation, hardening the division.
• Berlin Blockade and Airlift (June 1948 to May 1949). The Soviets cut surface access to West Berlin; the US and Britain flew in supplies for 11 months. The blockade ended without war and confirmed Germany's division.
• NATO (April 1949). Western mutual defense pact, the first peacetime military alliance the US ever joined.
• Warsaw Pact (May 1955). Soviet response after West Germany joined NATO.

Churchill's Iron Curtain speech at Westminster College in Missouri (March 1946) named the emerging division before the American policies were in place. The phrase shaped Western perception for the rest of the conflict.

Phase 2: Crises inside the bloc (1956 to 1968).

• Hungarian Uprising (1956). A reformist Hungarian government under Imre Nagy declared withdrawal from the Warsaw Pact; Soviet tanks crushed the rising in November. The West did not intervene.
• Berlin Wall (August 1961). East Germany, backed by Moscow, built the wall to stop emigration. It stood for 28 years and became the defining visual of the Cold War.
• Cuban Missile Crisis (October 1962). The most dangerous moment of the conflict. On this exam it appears as a Soviet strategic gamble and the trigger for the thaw and the Limited Test Ban Treaty (1963).
• Prague Spring (1968). Alexander Dubcek's reformist government attempted "socialism with a human face." Warsaw Pact troops invaded in August. The Brezhnev Doctrine justified Soviet intervention to prevent socialist countries from leaving the bloc, locking the Iron Curtain in place for two more decades.

Phase 3: Detente and collapse (1970 to 1991).

• Detente. Reduced tensions between the superpowers. Ostpolitik under West German Chancellor Willy Brandt normalized relations between West and East Germany. SALT I (1972) capped strategic launchers. The Helsinki Accords (1975) traded Western recognition of postwar European borders for Soviet pledges on human rights; the human-rights language fueled Eastern European dissident movements (Charter 77, Helsinki Watch groups).
• Solidarity in Poland (1980 onward). Lech Walesa's independent trade union at Gdansk became the first mass political opposition inside the Warsaw Pact. Martial law in December 1981 drove it underground but did not destroy it.
• Gorbachev's reforms (1985 onward). Mikhail Gorbachev launched glasnost (openness, relaxed censorship) and perestroika (economic restructuring within a planned economy). Both allowed long-suppressed grievances to surface without delivering economic improvement fast enough to contain them.
• The 1989 revolutions. Eastern European communist regimes collapsed across one year: Poland (Solidarity won contested elections in June), Hungary (opened its border with Austria in May, letting East Germans flee west), East Germany (Berlin Wall fell November 9), Czechoslovakia (the Velvet Revolution in November installed Vaclav Havel), Romania (Ceausescu overthrown and executed in December). Gorbachev's decision not to send Soviet troops (the Sinatra Doctrine) ended the Brezhnev Doctrine.
• Soviet dissolution (December 1991). A hardline coup against Gorbachev in August failed when Russian President Boris Yeltsin rallied resistance. The Soviet Union dissolved into 15 successor states on December 26, 1991.

The exam frames the Cold War's end as a multi-cause story: structural Soviet economic weakness, the Afghan quagmire (1979 to 1989), Gorbachev's reforms, the 1989 revolutions, and Reagan-era Western pressure all interact. No single-cause answer is the right answer.

Crisis or event	Year	Outcome
Berlin Blockade and Airlift	1948 to 1949	Germany's division confirmed; NATO follows
Hungarian Uprising	1956	Soviet suppression; Warsaw Pact reasserted
Berlin Wall built	1961	Emigration halted; 28-year symbol of the divide
Prague Spring	1968	Soviet invasion; Brezhnev Doctrine articulated
Helsinki Accords	1975	Borders accepted in exchange for human-rights pledges
Solidarity emerges	1980	First mass opposition inside the bloc
Berlin Wall falls	1989	East Germany collapses; reunification in 1990
Soviet Union dissolves	1991	Cold War formally ends

Post-Cold War European integration (lightly tested)

The post-1989 settlement is at the edge of the exam's scope, lightly tested but worth a quick pass.

The Maastricht Treaty (1992) created the European Union out of the European Communities, established the framework for the euro, and set the agenda for political union. The euro entered circulation in 1999 for accounting and 2002 in physical form.

NATO expansion brought former Warsaw Pact members (Poland, Hungary, the Czech Republic in 1999; the Baltic states and others in 2004) into the alliance.

The exam will not ask about events beyond roughly 1992. A question about post-1995 European politics is unlikely to be a Western Civ II question.

Memorization sequence

A 3-hour drill that locks in the World Wars and Cold War:

1. Minutes 0 to 30. Write the five underlying causes of WWI and the July Crisis sequence. Add the key Western and Eastern Front events. End with Brest-Litovsk and US entry.
2. Minutes 30 to 60. Write the Treaty of Versailles provisions (Article 231, reparations, territorial losses, military limits, redrawn map, League of Nations). Note the failure of the League and the unratified US position.
3. Minutes 60 to 90. Write the inter-war regime table. For each country, name the leader, year of power, and ideology. Add Five-Year Plans, collectivization, Great Purges, hyperinflation, Dawes-Young, Reichstag Fire, Enabling Act, Nuremberg Laws, and the Spanish Civil War as proxy.
4. Minutes 90 to 120. Write the WWII chronology from Munich 1938 through Hiroshima 1945. Name the conferences (Yalta and Potsdam at minimum) and their outcomes.
5. Minutes 120 to 150. Write the Cold War named policies and crises by phase: containment, Truman Doctrine, Marshall Plan, Berlin Airlift, NATO, Warsaw Pact, Hungary 1956, Berlin Wall, Cuban Missile Crisis, Prague Spring, Brezhnev Doctrine, detente, Helsinki, Solidarity, Gorbachev, 1989, 1991.
6. Minutes 150 to 180. Take 30 practice questions on the period. Review every wrong answer against the chain above.

Done across 4 sessions in a week, this drill locks in the 20th-century questions. The Flying Prep CLEP Western Civilization II program provides spaced-repetition flashcards on every named event above plus full-length practice exams weighted to the actual exam. Pair it with the official CLEP Examination Guide ($10 PDF) for question-style calibration. Khan Academy's 20th-century world history collection covers the era at the right level, and OpenStax World History Volume 2 is a free open textbook with strong coverage. For test-day format and scoring, see how CLEP exams actually work.