🌍ap world history: modern review

Great War

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 Great War, commonly known as World War I, was a global conflict that lasted from 1914 to 1918, involving many of the world's great powers divided into two main alliances: the Allies and the Central Powers. This war was marked by unprecedented levels of destruction and loss of life, fundamentally altering political, social, and economic structures across nations and laying the groundwork for future conflicts.

5 Must Know Facts For Your Next Test

  1. The assassination of Archduke Franz Ferdinand of Austria-Hungary in June 1914 is often cited as the immediate catalyst for the outbreak of the Great War.
  2. The war saw the introduction of new military technologies, such as tanks, airplanes, and chemical weapons, which changed the nature of warfare.
  3. Trench warfare became a defining feature of the conflict, leading to stalemates and horrific living conditions for soldiers on both sides.
  4. The Treaty of Versailles in 1919 officially ended the Great War but imposed heavy reparations on Germany, contributing to future political instability in Europe.
  5. The Great War resulted in an estimated 16 million deaths and created a significant impact on global politics, economics, and society, reshaping national boundaries and ideologies.

Review Questions

  • How did militarism contribute to the tensions that led to the outbreak of the Great War?
    • Militarism created an arms race among European powers, leading nations to build up their military forces and stockpile weapons. This aggressive stance increased paranoia and suspicion between countries, making diplomacy more difficult. As countries prioritized military readiness over peaceful solutions, it set the stage for a large-scale conflict when tensions flared.
  • Evaluate how nationalism influenced various countries' decisions to enter into alliances before the Great War.
    • Nationalism fostered a competitive environment where countries sought to assert their dominance over others. This sentiment prompted nations to form alliances based on shared ethnic or cultural ties. For example, Slavic nationalism inspired Russia to support Serbia against Austria-Hungary, while Germany's desire to assert its power led it to ally with Austria-Hungary. These nationalist motivations made conflict more likely as nations were drawn into alliances during times of crisis.
  • Assess the long-term consequences of the Great War on global politics and society in the years following its conclusion.
    • The Great War had profound long-term consequences that reshaped global politics and society. The collapse of empires such as Austria-Hungary and Ottoman Empire led to new nation-states emerging in Europe and the Middle East. The war also set in motion socio-political changes like women's suffrage movements as women took on roles traditionally held by men during wartime. Additionally, unresolved tensions from treaties like Versailles contributed to the rise of totalitarian regimes and eventually World War II. These shifts highlight how the Great War fundamentally altered not just borders but also ideologies across nations.

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