Causes
This term describes a policy of glorifying military power and keeping a standing army always prepared for war.
Militarism
Germany sent this secret telegram to Mexico, promising them U.S. territory in exchange for a military alliance.
Zimmerman Telegram
This type of warfare resulted in a "stalemate" where neither side could move forward from their dug-out ditches.
Trench Warfare
This 1919 treaty officially ended the war but crippled the German economy, paving the way for WWII.
Treaty of Versailles
People were so patriotic and overconfident in 1914 that they bragged the war would be over by this specific holiday.
Christmas
The intense competition for territories in Africa and Asia by European powers is known by this term.
Imperialism
This was the name of the British passenger liner sunk in 1915 that was secretly carrying over 4,000 cases of ammunition.
RMS Lusitania
This terrifying innovation was developed by scientists to break the stalemate by choking or blinding enemy soldiers.
Chemical Warfare/Poison Gas
President Wilson proposed this international organization in 1918 to promote peace, though the U.S. never joined it.
League of Nations
Though it was built to "promote world peace," this organization's biggest legacy was being so powerless it was eventually dissolved in 1946.
League of Nations
This "ism" refers to the belief in the superiority of one's own nation.
Nationalism
This January 1917 German policy declared that submarines would sink any vessel in British waters, regardless of its "neutral" status.
Unrestricted Submarine Warfare
These "heavy metal beasts" were engineered to cross the barbed wire and craters of "No Man's Land."
Tanks
This was the name of Woodrow Wilson’s list of goals for a "just and lasting peace" after the war.
Fourteen Points
The RMS Lusitania was marketed as a "luxury passenger liner," but it was secretly "side-hustling" of transporting these goods.
Weapons/Ammunition
While the Archduke's murder was the spark, the war became a global conflict because of this "obligatory" diplomatic system.
Alliance System/Alliances
These two specific laws were enacted to impose harsh penalties on Americans who spoke out against the war effort.
Espionage and Sedition Acts
This terrifying open space between enemy trenches was filled with barbed wire and craters, making crossing seem like a death trap for infantry.
No Man's Land
This global health crisis killed between 50 and 100 million people towards the war's end.
Spanish Flu
Woodrow Wilson campaigned on the idea of making the world "safe for democracy," yet he signed these two acts that made it a crime for Americans to speak against the war.
Espionage and Sedition Acts
Archduke Franz Ferdinand was the heir to this countries throne.
Austria
By 1917, the U.S. was no longer truly neutral because its economy was anchored to an Allied victory by billions of dollars in these outstanding financial obligations.
Loans/War Debts
This specific term describes the frustrating state of the war by 1914, where high-powered weapons prevented either side from advancing, resulting in a "deadlock."
Stalemate
Often biased or misleading, this tool was used by governments to convince their citizens that the war was a "short, glorious adventure."
Propaganda
This global "enemy" killed more people than any of the other countries combined, with some estimating 100 million kills.
Spanish Flu