Causes of the War
This system of mutual defense agreements between European powers meant an attack on one nation would drag others into war.
What is the Alliance System?
The stretch of muddy, heavily defended terrain between opposing trench lines was known by this name.
What is No Man’s Land?
This 1916 battle lasted 10 months and became a symbol of French determination with the phrase "They shall not pass."
What is the Battle of Verdun?
This British ocean liner was sunk by a German U-boat in May 1915, killing 128 Americans and shifting US public opinion.
What is the Lusitania?
The armistice ending fighting on the Western Front went into effect on this date and time in 1918.
What is November 11 at 11:00 AM (11th hour of the 11th day of the 11th month)?
Archduke Franz Ferdinand was assassinated in this city on June 28, 1914.
What is Sarajevo?
First introduced by the British at the Battle of the Somme in 1916, this armored vehicle was built to cross trenches.
What is the tank?
Fought in 1916, this joint British-French offensive resulted in over 1 million casualties and saw more than 57,000 British
What is the Battle of the Somme?
He served as the President of the United States throughout World War I.
Who was Woodrow Wilson?
Signed in June 1919, this primary peace treaty officially ended the state of war between Germany and the Allied Powers.
What is the Treaty of Versailles?
The terrorist group responsible for the assassination of Archduke Franz Ferdinand was known as this.
What is the Black Hand?
Germany used these rigid airships for reconnaissance and bombing raids over Britain.
What are Zeppelins?
This massive naval engagement in 1916 was the war’s only major battle between British and German dreadnought battleships.
What is the Battle of Jutland?
This secret message sent from Germany to Mexico offered to help Mexico regain lost territory in exchange for joining the war against the US.
What is the Zimmermann Telegram?
Clause 231 of the peace treaty forced Germany to accept full responsibility for starting the war, earning this common nickname.
What is the "War Guilt Clause"?
This term refers to the aggressive buildup of military forces and arms race in Europe leading up to 1914.
What is Militarism?
Germany’s submarine fleet was officially referred to by this German abbreviation.
What are U-boats
The 1915 Allied naval and amphibious operation aimed at capturing Constantinople and opening a sea route to Russia took place on this peninsula.
What is Gallipoli?
General John J. Pershing commanded this official military organization of US land forces sent to Europe.
What was the American Expeditionary Forces (AEF)?
Russia withdrew from WWI in early 1918 after signing this treaty with the Central Powers following the Bolshevik Revolution.
What is the Treaty of Brest-Litovsk?
Germany’s plan for a quick victory by invading Belgium to defeat France before turning to fight Russia was named after this general.
What is the Schlieffen Plan?
Chlorine gas was first used on a large scale by German forces at this 1915 battle in Belgium.
What is the Second Battle of Ypres?
Russia’s disastrous early defeat at this 1914 battle led to the suicide of Russian General Alexander Samsonov.
What is the Battle of Tannenberg?
President Wilson outlined his vision for post-war peace and the prevention of future wars in this famous 1918 speech.
What are the Fourteen Points?
This international diplomatic organization was created after WWI to resolve disputes and prevent future conflicts, though the US never joined.
What was the League of Nations?