Causes and Beginnings
Double Jeopardy:
This event in Sarajevo on June 28, 1914, sparked the beginning of World War I.
What is the assassination of Archduke Franz Ferdinand?
This 1916 battle was the longest of World War I and took place in France.
What is the Battle of Verdun?
This type of warfare characterized much of World War I, with soldiers fighting from long, defensive ditches.
What is trench warfare?
This country entered World War I in April 1917, tipping the balance in favor of the Allies.
What is the United States?
This international organization was created after World War I to maintain world peace.
What is the League of Nations?
These four factors contributed to the outbreak of WWI: Nationalism, Imperialism, Militarism, and this system of international agreements.
What is the Alliance System?
Over 1 million casualties resulted from this 1916 battle on the Western Front.
What is the Battle of the Somme?
Double Jeopardy:
First used by the British in 1916, this new weapon could cross "No Man's Land" and break through enemy lines.
What are tanks?
This Russian leader came to power after the October Revolution and signed a peace treaty with Germany.
Who is Vladimir Lenin?
The war officially ended with the signing of this treaty with Germany in 1919.
What is the Treaty of Versailles?
This country invaded Belgium and France in 1914, initiating warfare on the Western Front.
What is Germany?
Double Jeopardy:
This 1914 battle on the Eastern Front was a major German victory over Russia.
What is the Battle of Tannenberg?
German use of these underwater vessels threatened Allied shipping and contributed to U.S. entry into the war.
What are submarines (or U-boats)?
This German leader was forced to abdicate at the end of World War I
Who is Kaiser Wilhelm II?
This economic crisis that began in 1929 was partly a result of the war's aftermath.
What is the Great Depression?
The two main alliances in World War I were the Allied Powers and this group.
Who were the Central Powers?
This 1916 Russian offensive was initially successful but ultimately contributed to the collapse of the Russian army.
What is the Brusilov Offensive?
These flying machines were first used extensively in warfare during World War I for reconnaissance and combat.
What are airplanes?
This group seized power in Russia during the October Revolution of 1917.
Who are the Bolsheviks?
Double Jeopardy:
These four empires collapsed as a result of World War I.
What are the German, Austro-Hungarian, Ottoman, and Russian Empires?
This 1914 battle halted the German advance into France and resulted in trench warfare.
What is the First Battle of the Marne?
This 1918 battle marked a turning point for the Allies on the Western Front.
What is the Second Battle of the Marne?
These weapons, including chlorine and mustard gas, caused horrific injuries and were first used widely in WWI.
What are chemical weapons?
Double Jeopardy:
This Serbian nationalist assassinated Archduke Franz Ferdinand, triggering the start of World War I.
Who is Gavrilo Princip?
This political ideology rose to power in Italy and Germany in the aftermath of World War I.
What is fascism?