European History – 1890 to 1945

💣European History – 1890 to 1945 Unit 4 – The Course of World War I

World War I reshaped the global landscape from 1914 to 1918. Triggered by the assassination of Archduke Franz Ferdinand, the conflict quickly escalated into a global war, drawing in major powers through complex alliances and mobilizing entire societies for total war. The war introduced new technologies and tactics, from trench warfare to tanks and poison gas. Key battles like Verdun and the Somme resulted in massive casualties, while political upheavals like the Russian Revolution altered the course of the conflict. The war's aftermath redrew borders, toppled empires, and set the stage for future global tensions.

Key Events and Timeline

  • June 28, 1914: Assassination of Archduke Franz Ferdinand in Sarajevo triggers a chain of events leading to World War I
  • July 28, 1914: Austria-Hungary declares war on Serbia, marking the official start of the war
  • August 1-4, 1914: Germany declares war on Russia and France, while Britain declares war on Germany, escalating the conflict into a global war
  • 1914-1915: Trench warfare becomes the dominant form of combat on the Western Front, characterized by stalemate and high casualties
  • April 25, 1915: Allied forces land at Gallipoli, Turkey, in an unsuccessful attempt to secure the Dardanelles and aid Russia
  • May 7, 1915: Sinking of the Lusitania by a German U-boat, leading to increased tensions with the United States
  • February 21, 1916: Battle of Verdun begins, one of the longest and bloodiest battles of the war
  • July 1, 1916: First day of the Battle of the Somme, resulting in heavy casualties for the British and Allied forces
  • April 6, 1917: United States declares war on Germany, providing a significant boost to the Allied war effort
  • November 7, 1917: Bolshevik Revolution in Russia leads to the eventual withdrawal of Russia from the war
  • November 11, 1918: Armistice signed, ending fighting on the Western Front and effectively concluding World War I

Major Battles and Campaigns

  • Battle of Tannenberg (August 1914): Decisive German victory over Russia on the Eastern Front
  • First Battle of the Marne (September 1914): Allied victory halts German advance towards Paris
  • Gallipoli Campaign (1915-1916): Failed Allied attempt to capture the Gallipoli peninsula and secure a sea route to Russia
    • Campaign resulted in heavy casualties and a strategic defeat for the Allies
  • Battle of Verdun (February-December 1916): Longest battle of the war, resulting in massive casualties for both French and German forces
    • Became a symbol of French resistance and determination
  • Battle of the Somme (July-November 1916): British-led offensive on the Western Front, characterized by heavy casualties and limited territorial gains
  • Brusilov Offensive (June-September 1916): Russian offensive on the Eastern Front, initially successful but ultimately failed to achieve decisive results
  • Battle of Passchendaele (July-November 1917): Also known as the Third Battle of Ypres, a British offensive resulting in high casualties and minimal gains
  • Spring Offensive (March-July 1918): Final German offensive on the Western Front, initially successful but ultimately failed to achieve a decisive victory
    • Exhausted German resources and manpower, contributing to their eventual defeat

Technological Advancements

  • Machine guns: Became a dominant weapon in trench warfare, contributing to high casualty rates and defensive stalemates
  • Artillery: Improved range, accuracy, and destructive power, playing a crucial role in bombardments and infantry support
    • Introduction of new artillery pieces (howitzers, mortars) enhanced tactical flexibility
  • Poison gas: First used by Germany at the Second Battle of Ypres (1915), causing widespread fear and suffering among soldiers
    • Various types of gas (chlorine, phosgene, mustard gas) employed by both sides throughout the war
  • Tanks: First introduced by the British at the Battle of the Somme (1916), providing a means to break the stalemate of trench warfare
    • Initially unreliable and limited in number, but gradually improved in design and effectiveness
  • Aircraft: Evolved from reconnaissance roles to fighter planes and bombers, engaging in aerial combat and strategic bombing
    • Iconic aircraft (Sopwith Camel, Fokker D.VII) and famous aces (Manfred von Richthofen, Eddie Rickenbacker) emerged
  • Submarines: German U-boats conducted unrestricted submarine warfare, targeting Allied merchant ships and contributing to the entry of the United States into the war
  • Flamethrowers: Introduced by Germany, used to clear enemy trenches and instill psychological terror

Political and Diplomatic Developments

  • July Crisis (1914): Series of diplomatic maneuvers and ultimatums following the assassination of Archduke Franz Ferdinand, ultimately leading to the outbreak of war
  • Secret alliances and treaties: Complex web of alliances (Triple Alliance, Triple Entente) contributed to the rapid escalation of the conflict
  • Schlieffen Plan: Germany's pre-war strategy to quickly defeat France and then focus on Russia, ultimately failed in execution
  • Zimmermann Telegram (1917): Intercepted German message proposing an alliance with Mexico against the United States, contributing to U.S. entry into the war
  • Russian Revolution (1917): Bolshevik seizure of power in Russia led to the Treaty of Brest-Litovsk and Russia's withdrawal from the war
    • Allowed Germany to focus its efforts on the Western Front
  • Fourteen Points (1918): U.S. President Woodrow Wilson's post-war vision for a new international order based on self-determination and collective security
  • Paris Peace Conference (1919): International conference to establish the terms of peace, resulting in the Treaty of Versailles and the formation of the League of Nations
    • Controversial decisions (war guilt clause, reparations) sowed seeds for future conflicts

Home Front and Social Impact

  • Total war: Mobilization of entire societies and economies to support the war effort, blurring the lines between civilian and military spheres
  • Women in the workforce: As men were conscripted into the military, women took on new roles in factories, agriculture, and public services
    • Contributed to changing gender roles and the advancement of women's rights in some countries
  • Rationing and shortages: Governments implemented rationing systems to manage limited resources and ensure fair distribution of essential goods
  • Propaganda: Widespread use of propaganda to maintain morale, demonize the enemy, and encourage enlistment and support for the war effort
    • Posters, films, and other media employed to shape public opinion
  • Conscription: Many countries introduced conscription to bolster their military ranks, leading to social and political tensions
  • Civilian casualties: Aerial bombardment, naval blockades, and other tactics resulted in significant civilian casualties and hardship
  • Influenza pandemic (1918-1919): Spread rapidly in the aftermath of the war, claiming millions of lives worldwide and compounding the war's toll on public health

Military Strategies and Tactics

  • Trench warfare: Dominant form of combat on the Western Front, characterized by static defensive positions, artillery barrages, and infantry assaults
    • Led to prolonged stalemates and high casualty rates
  • Attrition: Strategy employed by both sides to wear down the enemy through continuous assaults and battles of endurance
    • Exemplified by battles such as Verdun and the Somme
  • Combined arms: Integration of infantry, artillery, and later, tanks and aircraft, to achieve breakthroughs and overcome the stalemate of trench warfare
  • Infiltration tactics: Developed by Germany, emphasized small, highly-trained units to penetrate enemy lines and disrupt rear areas
    • Employed during the Spring Offensive (1918)
  • Blockades: Naval blockades used to disrupt enemy trade and supply lines, most notably the British blockade of Germany
    • Contributed to shortages and hardship on the home front
  • Unrestricted submarine warfare: German U-boats targeted Allied merchant ships without warning, leading to civilian casualties and diplomatic tensions
  • Scorched earth: Tactic employed by retreating armies to deny resources and shelter to the advancing enemy, particularly on the Eastern Front
  • Creeping barrage: Artillery tactic involving a slowly advancing curtain of fire to provide cover for advancing infantry
    • Improved coordination between infantry and artillery

Key Figures and Leaders

  • Archduke Franz Ferdinand: Heir to the Austro-Hungarian throne, his assassination on June 28, 1914, sparked the outbreak of World War I
  • Kaiser Wilhelm II: German Emperor during World War I, played a significant role in the country's aggressive foreign policy and military decisions
  • Tsar Nicholas II: Last Emperor of Russia, his ineffective leadership and the strains of the war contributed to the Russian Revolution and his abdication in 1917
  • Woodrow Wilson: President of the United States during World War I, initially pursued a policy of neutrality but later led the U.S. into the war in 1917
    • Proposed the Fourteen Points as a basis for post-war peace
  • Georges Clemenceau: Prime Minister of France during the latter part of the war, known as "The Tiger" for his fierce determination to defeat Germany
  • David Lloyd George: Prime Minister of the United Kingdom during the latter part of the war, played a key role in the management of the British war effort
  • Paul von Hindenburg and Erich Ludendorff: German military leaders who effectively controlled the country's war effort in the latter stages of the conflict
  • Ferdinand Foch: French general who served as the Supreme Allied Commander during the final year of the war, coordinating the Allied offensives that led to victory
  • John J. Pershing: Commander of the American Expeditionary Forces (AEF), oversaw the deployment and combat operations of U.S. troops in Europe

Aftermath and Consequences

  • Treaty of Versailles: Peace treaty signed in June 1919, imposed harsh terms on Germany, including significant territorial losses, military restrictions, and war reparations
    • Widely criticized for its severity and sowing the seeds of future conflict
  • Dissolution of empires: The war led to the collapse of the Austro-Hungarian, Ottoman, and Russian empires, redrawing the political map of Europe and the Middle East
  • Formation of new nations: New countries (Poland, Czechoslovakia, Yugoslavia) emerged from the former empires, based on the principle of self-determination
  • League of Nations: International organization established to promote peace and collective security, but ultimately failed to prevent future conflicts
  • Economic devastation: The war left many countries with massive debts, damaged infrastructure, and disrupted trade, contributing to economic instability and the Great Depression
  • Social and cultural changes: The war accelerated social changes, including the advancement of women's rights, the rise of consumerism, and the emergence of new artistic and literary movements
  • Lost Generation: Term used to describe the generation that came of age during the war, characterized by disillusionment, alienation, and a sense of loss
  • Rise of totalitarianism: The political and economic instability in the aftermath of the war contributed to the rise of totalitarian regimes (Nazi Germany, Soviet Union)
    • Set the stage for World War II
  • Remembrance and commemoration: The scale and impact of the war led to the establishment of numerous memorials, cemeteries, and traditions to honor the fallen and commemorate the conflict


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© 2024 Fiveable Inc. All rights reserved.
AP® and SAT® are trademarks registered by the College Board, which is not affiliated with, and does not endorse this website.