Honors World History Unit 8 Review: World Wars and Their Global Impact

Key Events and Timeline

• World War I lasted from 1914 to 1918 involved major European powers and their colonies
• Assassination of Archduke Franz Ferdinand of Austria-Hungary in Sarajevo on June 28, 1914 triggered a chain of events leading to the outbreak of war
• Germany declared war on Russia on August 1, 1914 and on France on August 3, 1914
• Britain declared war on Germany on August 4, 1914 after Germany violated Belgian neutrality
• United States entered the war on April 6, 1917 after Germany resumed unrestricted submarine warfare
• Russia withdrew from the war in 1917 following the Bolshevik Revolution and signed the Treaty of Brest-Litovsk with Germany in March 1918
• Armistice signed on November 11, 1918 ended the fighting on the Western Front
• Treaty of Versailles signed on June 28, 1919 officially ended World War I and established the League of Nations

Causes and Origins

• Nationalism fueled tensions and rivalries among European powers as countries sought to assert their dominance and protect their interests
• Imperialism led to competition for colonies and resources particularly in Africa and Asia
• Militarism resulted in an arms race and the buildup of standing armies and navies
  • Germany's naval expansion challenged British naval supremacy
  • Arms race between Germany and Russia heightened tensions in Eastern Europe
• System of alliances divided Europe into two opposing camps (Triple Alliance of Germany, Austria-Hungary, and Italy vs. Triple Entente of France, Russia, and Britain)
• Balkan crises and instability in the Ottoman Empire created a powder keg in southeastern Europe
• Assassination of Archduke Franz Ferdinand served as the immediate trigger for the war as Austria-Hungary blamed Serbia and sought to punish it

Major Battles and Military Strategies

• Trench warfare characterized much of the fighting on the Western Front with soldiers facing each other from elaborate systems of trenches
  • Battles of Verdun and the Somme in 1916 exemplified the brutal nature of trench warfare
• Schlieffen Plan called for a quick German victory over France followed by a shift of forces to the Eastern Front to defeat Russia
  • Failure of the plan led to a prolonged two-front war for Germany
• Gallipoli Campaign in 1915 was an unsuccessful attempt by the Allies to capture the Gallipoli peninsula and secure a sea route to Russia
• Battle of Jutland in 1916 was the largest naval battle of the war and ended in a tactical German victory but a strategic British victory
• Germany's use of unrestricted submarine warfare aimed to cut off Britain's supply lines but ultimately drew the United States into the war
• Allied offensive in the summer and fall of 1918 (Hundred Days Offensive) broke through German lines and led to the end of the war

Political and Diplomatic Developments

• July Crisis of 1914 saw a flurry of diplomatic activity and ultimatums following the assassination of Archduke Franz Ferdinand
• Schlieffen Plan and Germany's invasion of Belgium and Luxembourg violated their neutrality and brought Britain into the war
• Zimmermann Telegram in 1917 was a secret diplomatic communication from Germany to Mexico proposing an alliance against the United States
  • Interception and decoding of the telegram by British intelligence helped push the United States closer to entering the war
• Russian Revolution in 1917 led to Russia's withdrawal from the war and the rise of the Bolsheviks under Vladimir Lenin
• Fourteen Points outlined by U.S. President Woodrow Wilson in January 1918 served as the basis for the post-war peace settlement
• Paris Peace Conference in 1919 resulted in the signing of the Treaty of Versailles and the creation of the League of Nations
  • Treaty of Versailles imposed harsh terms on Germany including significant territorial losses, military restrictions, and war reparations

Technological Advancements

• Machine guns revolutionized infantry tactics and made frontal assaults against entrenched positions extremely costly
• Artillery played a crucial role in trench warfare with heavy guns causing massive destruction and creating lunar landscapes
• Poison gas introduced as a new and terrifying weapon with chlorine, phosgene, and mustard gas being used by both sides
• Tanks first used by the British in the Battle of the Somme in 1916 and played a growing role in breaking the stalemate of trench warfare
• Aircraft initially used for reconnaissance but later employed for bombing and aerial combat (dogfights)
  • German Fokker Eindecker and British Sopwith Camel were famous fighter planes
• Submarines used by Germany to attack Allied shipping and enforce a blockade of Britain
  • Sinking of the Lusitania in 1915 and the Sussex pledge in 1916 were notable submarine incidents

Social and Economic Impact

• Total war required the mobilization of entire societies and economies to support the war effort
• Women entered the workforce in large numbers to replace men who had gone off to fight
  • Women also served as nurses, ambulance drivers, and in other support roles
• Rationing and government control of key industries became common to ensure adequate supplies for the military
• Propaganda used extensively to maintain morale, demonize the enemy, and encourage enlistment
• Conscription (draft) introduced in many countries to provide the necessary manpower for the war
• Ethnic and religious minorities faced discrimination and persecution (Armenian Genocide, anti-Semitism)
• Influenza pandemic of 1918-1919 (Spanish flu) killed millions worldwide and spread rapidly due to the movement of troops and refugees

Cultural and Artistic Responses

• War poets such as Wilfred Owen, Siegfried Sassoon, and Rupert Brooke captured the horror and disillusionment of trench warfare
• Novels like "All Quiet on the Western Front" by Erich Maria Remarque portrayed the psychological impact of the war on soldiers
• Dada movement emerged as a reaction against the irrationality and destruction of the war
  • Dada artists like Marcel Duchamp and Hannah Hoch used absurdity and irony to critique society and traditional art forms
• Expressionist painters like Otto Dix and George Grosz depicted the grotesque realities of the war and its aftermath
• War memorials and monuments erected in many countries to commemorate the sacrifices of soldiers and civilians
  • Tomb of the Unknown Soldier in Paris and the Cenotaph in London are notable examples
• Jazz music gained popularity in the post-war years as people sought escape and entertainment

Legacy and Global Consequences

• Collapse of four empires (German, Austro-Hungarian, Ottoman, and Russian) reshaped the political map of Europe and the Middle East
• Bolshevik Revolution in Russia and the rise of communism inspired revolutionary movements worldwide
• Treaty of Versailles and the war guilt clause left Germany resentful and politically unstable setting the stage for the rise of Nazism
• League of Nations established to prevent future wars but ultimately failed to maintain international peace and security
• Principle of national self-determination promoted by Woodrow Wilson led to the creation of new nation-states in Europe and the Middle East
• Economic devastation and war debts contributed to the instability of the 1920s and the Great Depression of the 1930s
• Technological advancements during the war had far-reaching effects on civilian life (aviation, medicine, communication)
• Lost Generation of writers and artists grappled with the disillusionment and trauma of the post-war years
• Seeds of World War II sown in the unresolved conflicts and resentments left by World War I