Causes
This term describes the intense competition between European nations to build the largest navies and standing armies.
Militarism
On the Eastern Front, this 1914 battle was a catastrophic defeat for Russia, resulting in the destruction of their Second Army.
Battle of Tannenberg
Britain first introduced this armored vehicle at the Battle of the Somme to help cross broken terrain
Tank
This "holy man" gained massive influence over the Tsarina Alexandra before being assassinated in 1916.
Rasputin
Which country did the Treaty of Versailles blame for starting the war?
Germany
This alliance was comprised of Germany, Austria-Hungary, and Italy at the start of the war.
Triple Alliance / Central Powers
This failed Allied campaign in 1915 aimed to capture the Dardanelles and open a supply route to Russia.
Gallipoli
This new and terrifying weapon was first used by Germany and later banned by international treaty in 1925.
Poison gas
This leader was forced to abdicate his throne during the February/March Revolution of 1917.
Tsar Nicholas II
This was the name of Woodrow Wilson's plan for a "just and lasting peace."
14 Points
This region was known as the "Powder Keg of Europe" due to its intense ethnic nationalism and history of conflict.
The Balkans
This 1914 battle stopped the German advance into France and resulted in the beginning of trench warfare.
Battle of the Marne
This was the deadly, open space located between the opposing sides' trenches.
No Man's Land
He was the leader of the Bolsheviks who returned to Russia in a "sealed train" to lead the October Revolution.
Lenin
This intercepted message from Germany to Mexico encouraged an invasion of the United States.
Zimmerman Telegram
Germany gave Austria-Hungary this "unconditional" promise of support, ensuring a local conflict would become a global one.
Blank Check
This 1918 offensive was the largest operation ever for the American Expeditionary Forces and helped end the war.
Meuse-Argonne Offensive
This situation on the Western Front occurred when neither side could gain a decisive advantage over the other.
Hint: It begins with S
Stalemate
This was the simple, three-word slogan used by the Bolsheviks to win the support of the Russian people.
"Peace, Bread, and Land"
This specific day and time marks when the armistice went into effect, ending the fighting.
November 11, 1918
The "spark" that ignited the war occurred in this city when Archduke Franz Ferdinand was assassinated
Sarajevo
This massive 1916 battle of attrition lasted 10 months and became a symbol of French resistance.
Battle of Verdun
This term refers to a war where each side tries to wear down the enemy through continuous losses in personnel and material.
War of attrition
This treaty, signed in early 1918, officially ended Russia's participation in World War I.
The Treaty of Brest-Litovsk
This international organization was created after the war to prevent future conflicts, though the U.S never joined.
League of Nations