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Study Guide: How World War I Started (World History)
Source: https://www.fatskills.com/crash-course/chapter/how-world-war-i-started-world-history

How World War I Started (World History)

By Fatskills Exam Guides Team — the exam nerds behind 28,500+ quizzes and 2.1M practice questions across 500+ global exams.

⏱️ ~4 min read

Crash Course: How World War I Started (World History)

Crash Course: How World War I Started

Introduction Imagine a global conflict that would claim over 37 million lives, leave 20 million wounded, and change the course of world history forever. But how did it all start?

The Core Idea World War I was a complex and multifaceted conflict that began in 1914, sparked by a series of events and alliances that ultimately led to a global war. At its core, the war was a clash between two opposing ideologies: the Central Powers (Germany, Austria-Hungary, and the Ottoman Empire) and the Allied Powers (France, Britain, Russia, and the United States).

Key Facts & Figures

  • The Balkans: The region of southeastern Europe, where the war began, was a hotbed of nationalism and ethnic tensions.
  • Archduke Franz Ferdinand: The heir to the Austro-Hungarian throne, who was assassinated in 1914 in Sarajevo, Bosnia.
  • Gavrilo Princip: A young Bosnian Serb who carried out the assassination, which sparked a chain reaction of events.
  • The Triple Entente: An alliance between France, Russia, and Britain, formed in 1907 to counterbalance the growing power of Germany.
  • The Schlieffen Plan: A military strategy developed by Germany in 1905, which called for a quick victory over France and then a turn to face Russia.
  • The Assassination: On June 28, 1914, Gavrilo Princip assassinated Archduke Franz Ferdinand, sparking a crisis that would lead to war.
  • Austria-Hungary's Ultimatum: On July 23, 1914, Austria-Hungary issued an ultimatum to Serbia, which Serbia refused to comply with.
  • Russia Mobilizes: On July 24, 1914, Russia began to mobilize its military in response to Austria-Hungary's ultimatum.
  • Germany Declares War: On August 1, 1914, Germany declared war on Russia, and then on France two days later.
  • The War Spreads: Over the next few weeks, the war spread to involve more countries, including Britain, Belgium, and the Ottoman Empire.
  • The Treaty of London: In 1915, the Allies signed a treaty with Italy, which had been neutral until then.
  • The United States Enters: On April 6, 1917, the United States declared war on Germany, after Germany resumed unrestricted submarine warfare and sank several American ships.

Thought Bubble Imagine you're a young diplomat in Vienna in 1914, trying to navigate the complex web of alliances and rivalries between the great powers. You're aware of the growing tensions in the Balkans, and the assassination of Archduke Franz Ferdinand has sent shockwaves through the diplomatic community. As you try to make sense of the situation, you realize that the assassination has triggered a chain reaction of events that will lead to war. You see the Austro-Hungarian ambassador to Serbia, Count Franz von Harrach, delivering an ultimatum to the Serbian government, which Serbia refuses to comply with. You watch as Russia begins to mobilize its military, and Germany declares war on Russia. You feel the weight of history bearing down on you, as the great powers of Europe hurtle towards conflict.

Why This Matters

  • The Rise of Nationalism: The war marked a turning point in the rise of nationalism, as countries began to prioritize their own interests over international cooperation.
  • The End of the Old Order: The war marked the end of the old order in Europe, as empires and monarchies began to collapse.
  • The Redrawing of Maps: The war led to the redrawing of maps, as countries gained and lost territory.
  • The Rise of the United States: The war marked a turning point in the rise of the United States as a global power.
  • The Birth of the League of Nations: The war led to the creation of the League of Nations, an international organization dedicated to preventing future wars.
  • The Rise of Fascism: The war created a power vacuum that allowed fascist movements to rise to power in countries like Italy and Germany.
  • The Holocaust: The war laid the groundwork for the Holocaust, as anti-Semitic sentiment and racism spread throughout Europe.

Crash Course Recap

  • ⚠️ The Assassination of Archduke Franz Ferdinand sparked the war.
  • The Balkans were a hotbed of nationalism and ethnic tensions.
  • The Triple Entente was an alliance between France, Russia, and Britain.
  • The Schlieffen Plan was a military strategy developed by Germany.
  • Russia mobilized in response to Austria-Hungary's ultimatum.
  • Germany declared war on Russia and France.
  • The war spread to involve more countries, including Britain, Belgium, and the Ottoman Empire.
  • The United States entered the war in 1917.
  • The Treaty of London was signed in 1915.
  • The war lasted from 1914 to 1918.

Quiz Yourself

  1. Who assassinated Archduke Franz Ferdinand? a) Gavrilo Princip b) Count Franz von Harrach c) Kaiser Wilhelm II d) Tsar Nicholas II

Answer: a) Gavrilo Princip

  1. What was the name of the military strategy developed by Germany in 1905? a) The Schlieffen Plan b) The Triple Entente c) The Balkan Pact d) The Central Powers Alliance

Answer: a) The Schlieffen Plan

  1. Which country declared war on Germany in 1917? a) France b) Britain c) Russia d) The United States

Answer: d) The United States

  1. What was the name of the treaty signed in 1915 between the Allies and Italy? a) The Treaty of London b) The Treaty of Paris c) The Treaty of Versailles d) The Treaty of Berlin

Answer: a) The Treaty of London

  1. How many lives were lost in World War I? a) 10 million b) 20 million c) 30 million d) 37 million

Answer: d) 37 million