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Global Conflict

Unit 7 of AP World History: Modern, worth 8–10% of the exam. 14 questions below, each with the working. Every answer was checked by a second pass before it was published.

Shifting power after 1900, World War I, the interwar period, unresolved tensions, World War II, mass atrocities.

How this unit is tested

Unit 7 is a causation-heavy unit: almost every exam question asks you to explain why something happened, not just what happened. Start by separating long-term structural causes (imperial rivalries, nationalism, industrial-scale militaries) from short-term triggers (an assassination, an invasion, a broken treaty) — the exam rewards students who can do both, not just name 'World War I started because of the assassination of Franz Ferdinand.' Build a timeline in your head that runs 1900 → 1914 → 1919 → 1929 → 1933 → 1939 → 1945, and for each hinge date know what changed and why the change mattered for what came next. The interwar period is the hinge of the whole unit: almost every WWII question can be answered by tracing it back to something unresolved from Versailles or worsened by the Depression. Do not let 'World War' mean 'Europe' in your head — the AP framework explicitly wants Japan's rise, its invasion of Manchuria and China, and the Pacific theater treated as co-equal with the European story, and it wants the Ottoman collapse and the Armenian Genocide treated as part of the same global pattern of empires fracturing under war stress. For mass atrocities, practice naming the perpetrator, the targeted group, and the historical context (war, revolution, imperial collapse) for each case — the Armenian Genocide, the Holocaust, the Nanjing Massacre, and Stalin's purges/Holodomor are the four the exam draws on most, and comparison questions expect you to note both similarities (state-directed, wartime or crisis conditions) and differences (scale, method, target).

What you have to know

MAIN causes of WWI
Militarism, Alliances, Imperialism, and Nationalism are the four long-term structural causes historians use to explain why a regional crisis in the Balkans escalated into a general European war.
Totalitarianism
A system of government in which the state seeks total control over public and private life, mobilizes the entire population behind a single ideology, and tolerates no organized opposition; used to describe Stalin's USSR, Nazi Germany, and Fascist Italy.
Total war
A conflict in which belligerent states mobilize their entire economy, population, and resources for the war effort, blurring the line between combatants and civilians.
Genocide (UN definition, 1948)
Acts committed with intent to destroy, in whole or in part, a national, ethnical, racial, or religious group, including killing members of the group or inflicting conditions calculated to destroy it.
Historical causation
Historical events result from a combination of long-term (structural) causes that make an outcome possible and short-term (proximate) causes or triggers that make it actually happen at a particular moment.

14 practice questions

  1. Which event best illustrates the early twentieth-century shift away from a Euro-centric global order?
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    Answer. Japan's victory over Russia in the Russo-Japanese War (1905)

    Japan's defeat of a major European power was the first modern military victory of an Asian state over a European one, signaling that industrial and military power was no longer a European monopoly and encouraging Japanese imperial ambition in Asia.
  2. Name the four long-term structural causes historians group under the acronym MAIN that made a general European war possible by 1914.
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    Answer. Militarism, Alliances, Imperialism, Nationalism

    These four conditions created a Europe primed for war: large standing armies ready to mobilize, rigid alliance commitments, competition over colonies, and intense national rivalries, so that a regional spark could ignite a continental conflict.
  3. The assassination of Archduke Franz Ferdinand in June 1914 is best understood in an exam essay as what kind of cause?
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    Answer. A short-term trigger, not a root cause

    The assassination provided the immediate spark, but it only led to world war because of pre-existing alliance obligations, militarized states, and imperial and nationalist tensions; a strong answer must pair the trigger with structural causes.
  4. How did the character of combat in World War I differ from prior wars, and what term describes the mobilization it required?
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    Answer. New industrial weapons (machine guns, poison gas, tanks, artillery) produced stalemate and trench warfare, requiring total war mobilization of entire economies and populations

    Because defensive technology outpaced offensive tactics, armies dug in along static front lines, and governments had to conscript soldiers, ration goods, and direct industry entirely toward the war effort, blurring the line between soldier and civilian.
  5. What provision of the Treaty of Versailles most directly fueled long-term German resentment that fed into the rise of Nazism?
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    Answer. The War Guilt Clause (Article 231) assigning Germany sole responsibility for the war and justifying heavy reparations

    By forcing Germany to accept blame and pay crushing reparations while losing territory and military capacity, the treaty created widespread resentment that Hitler and other nationalists exploited politically in the 1920s and 1930s.
  6. How did the Great Depression contribute to the rise of totalitarian regimes in the interwar period?
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    Answer. Mass unemployment and economic collapse discredited democratic governments and made radical parties promising strong leadership and economic revival, like the Nazis, more appealing to voters

    In Germany especially, the Depression pushed unemployment to crisis levels; the Nazi Party capitalized on public desperation and resentment of Versailles to win growing electoral support, culminating in Hitler's appointment as chancellor in 1933.
  7. What defines a totalitarian state, as distinguished from a merely authoritarian one?
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    Answer. A totalitarian state seeks total control over both public and private life and mobilizes the whole population behind a single official ideology, not just political power

    Stalin's USSR, Hitler's Germany, and Mussolini's Italy all used propaganda, secret police, and single-party control to penetrate deeply into economic, cultural, and even family life, going beyond simple authoritarian rule.
  8. Japan's invasion of Manchuria in 1931 is best explained by which combination of factors?
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    Answer. Economic pressure from the Great Depression on Japan's export economy combined with military leaders' push for resource-rich territory to secure raw materials and markets

    As global trade collapsed, Japanese military leaders argued that controlling Manchuria's resources and markets was essential to national survival, and the League of Nations' weak response emboldened further expansion into China.
  9. Why is the Munich Agreement of 1938 considered the clearest failure of the policy of appeasement?
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    Answer. Britain and France allowed Hitler to annex the Sudetenland in exchange for a promise of no further territorial demands, but Hitler broke the agreement and invaded the rest of Czechoslovakia within months

    The agreement was meant to preserve peace by satisfying Hitler's stated demands, but it demonstrated to Hitler that the Western powers would not resist aggression, encouraging his invasion of Poland in 1939.
  10. What was the strategic purpose of the 1939 Nazi-Soviet Pact (Molotov-Ribbentrop Pact) for both signatories?
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    Answer. It allowed Germany to invade Poland without fighting a two-front war, and allowed the USSR to seize eastern Poland and the Baltic states while avoiding immediate conflict with Germany

    Though ideologically opposed, both regimes benefited from a temporary non-aggression arrangement with secret protocols dividing Eastern Europe, which removed the immediate threat of Soviet intervention when Germany invaded Poland.
  11. How did total war mobilization in World War II change the role of civilian populations compared to prewar society?
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    Answer. Civilians were drawn directly into war production and combat risk through rationing, war industry labor (including large-scale employment of women), and strategic bombing of cities

    Governments on all sides directed entire economies toward military production, conscripted labor, and treated civilian infrastructure and morale as legitimate military targets, making the home front as central to the war as the battlefield.
  12. What historical context connects the Armenian Genocide (1915–1923) to the broader theme of shifting power after 1900?
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    Answer. It occurred as the multiethnic Ottoman Empire was collapsing under wartime pressure, and Ottoman leaders targeted the Armenian minority as a perceived internal threat to a weakening state

    The wartime crisis of the declining Ottoman Empire created conditions in which its leadership carried out mass deportation and killing of Armenians, an early twentieth-century example of an empire in collapse turning violently on a minority population.
  13. What distinguishes the Holocaust from other WWII-era episodes of mass violence in terms of scale and intent?
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    Answer. It was a systematic, industrialized campaign of extermination targeting Jews and other groups across occupied Europe based on explicit racial ideology, resulting in roughly six million Jewish deaths

    Unlike wartime atrocities that occurred as byproducts of military campaigns, the Holocaust involved purpose-built extermination camps and a bureaucratic state apparatus dedicated specifically to genocide as official policy.
  14. What links the Nanjing Massacre and the Holodomor as comparable cases of mass atrocity in this era, despite their different perpetrators?
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    Answer. Both involved a state deliberately inflicting mass death on a civilian population under conditions of war or political crisis, using violence or engineered deprivation as an instrument of policy

    Japan's massacre of Chinese civilians in Nanjing (1937–38) and Stalin's engineered famine in Ukraine (1932–33) both show state power turned lethally against civilian populations, though one used direct violence during conquest and the other used forced grain requisition during collectivization.

What people get wrong

  1. Treating the assassination of Franz Ferdinand as 'the cause' of WWI. Instead, name it as the trigger and pair it with at least two of the MAIN structural causes to explain why a regional incident became a world war.
  2. Blaming World War II entirely on the Treaty of Versailles. Instead, weigh Versailles alongside the Great Depression, the failure of collective security (League of Nations, appeasement), and Japanese militarism as parallel causes.
  3. Using 'totalitarian' and 'authoritarian' interchangeably. Instead, reserve 'totalitarian' for regimes that pursue total control over ideology, economy, and private life (Stalin, Hitler, Mussolini), since the exam tests this distinction.
  4. Writing about WWII as if it were only a European war. Instead, always be ready to bring in Japan's invasion of Manchuria and China, and the Pacific theater, since the framework treats these as core content, not background.
  5. Discussing the Holocaust, the Armenian Genocide, and Stalin's purges as identical events. Instead, be ready to state the specific perpetrator, victim group, and wartime/political context for each, and to compare method and scale when asked.
  6. Forgetting that appeasement was a deliberate policy choice, not passive weakness. Instead, be able to explain the reasoning behind it (fear of another total war, sympathy for revising Versailles) and why it failed at Munich in 1938.

Drill this unit until it sticks

These questions come back on a schedule built from what you get wrong, alongside the rest of AP World History: Modern. Free, and no account needed to start.

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