🇪🇺ap european history review

Immediate trigger for World War I

Written by the Fiveable Content Team • Last updated September 2025
Verified for the 2026 exam
Verified for the 2026 examWritten by the Fiveable Content Team • Last updated September 2025

Definition

The immediate trigger for World War I refers to the assassination of Archduke Franz Ferdinand of Austria and his wife Sophie on June 28, 1914, in Sarajevo. This event set off a chain reaction of alliances and tensions between major European powers, leading to the outbreak of the war. It highlighted the fragility of peace and the complex web of political relationships that characterized Europe at the time.

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5 Must Know Facts For Your Next Test

  1. The assassination was carried out by Gavrilo Princip, a member of a nationalist group called the Black Hand, which sought to promote Slavic nationalism.
  2. Austria-Hungary's reaction to the assassination included issuing an ultimatum to Serbia, which contained demands that were intentionally harsh to provoke conflict.
  3. The failure of diplomacy after the assassination led to a series of mobilizations and declarations of war among European powers, escalating into a full-blown conflict.
  4. This event is often considered the spark that ignited existing tensions related to imperialism, militarism, and nationalism across Europe.
  5. By August 4, 1914, most of Europe was drawn into the war due to a combination of alliances and mutual defense agreements triggered by the crisis.

Review Questions

  • How did the assassination of Archduke Franz Ferdinand serve as a catalyst for existing tensions among European nations?
    • The assassination of Archduke Franz Ferdinand acted as a catalyst by exacerbating pre-existing nationalistic sentiments and entangled alliances among European powers. It revealed how fragile peace was, as countries were quick to mobilize in response to perceived threats. The assassination triggered Austria-Hungary's aggressive stance toward Serbia and involved Russia's support for Serbia, drawing in other nations due to their alliance commitments. This domino effect highlighted how a single event could escalate into widespread conflict.
  • Discuss the role of the Alliance System in escalating the response to the assassination and leading to World War I.
    • The Alliance System played a crucial role in escalating the response to the assassination by binding countries together through treaties that required mutual defense. After Austria-Hungary declared war on Serbia, Russia mobilized its army in defense of Serbia due to their alliance. This mobilization prompted Germany to declare war on Russia, followed by declarations against France and Britain. The interlocking alliances turned what could have been a localized conflict into a global war, showcasing how these agreements increased tensions rather than promoting peace.
  • Evaluate how nationalism influenced both the assassination of Archduke Franz Ferdinand and the subsequent reactions from European powers.
    • Nationalism significantly influenced both the assassination and subsequent reactions by fostering intense feelings of ethnic pride and resentment among different groups within Europe. Gavrilo Princip's motivations stemmed from a desire for Slavic independence from Austro-Hungarian rule. After the assassination, nationalist fervor fueled Austria-Hungary's resolve to punish Serbia, viewing it as a threat to their empire's stability. As nations rallied behind their national interests, it further polarized alliances and escalated tensions across Europe, demonstrating how deeply ingrained nationalist sentiments contributed to the outbreak of World War I.

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