Countries around the world would build stronger armies to counter each other.
Militarism
Dangerous gas that killed thousands in Europe.
Poison Gas
Germany sunk this ship off the coast of Great Britain, it angered the US.
Lusitania
These groups of Americans did not agree with World War I, and were often ridiculed by other Americans.
Conscientious Objectors
Germany was to be held fully responsible for all casualties of World War I.
War Guilt
System of formal, political friendships that ultimately led to the world at war.
Alliances
This brand new form of naval warfare was extremely problematic, primarily used by the Germans.
Submarine Warfare
This form of naval tactic was created to combat the German submarine warfare.
Convoy System
Draft created to recruit Americans for World War I.
Selective Service Act
Germany was forced to pay a substantial amount of money due to the destruction of World War I.
Reparations
Intense pride in your own country, borderline dangerous.
Nationalism
The main form of fighting during World War I, included dangerous conditions with high casualties and stationary combat.
Trench Warfare
This political incident frustrated the US, it involved Germany and Mexico.
Zimmerman Telegram
US prepared for World War I by doing this specific act, involving resources needed for war.
Rationing
Created by Woodrow Wilson, these were intended to fix all of the war-related issues around the world and create world peace.
Fourteen Points
Wanted to control the rest of the world for resources.
Imperialism
These machines were created for the purpose of reconnaissance.
Airplanes
Promise between Germany and the US to no longer use submarine warfare.
Sussex Pledge
Organization within the US responsible in preparing Americans for war ASAP by creating propaganda, rationing, and other pro-American actions.
War Industries Board
Peace treaty that crippled Germany socially, politically, and economically.
Treaty of Versailles
This individual was assassinated and is often considered the major catalyst for World War I.
Archduke Franz Ferdinand
Brand new weapon that was used by Americans, often called as cruel by the Germans.
Shotgun
How did the European Allies combat the use of submarine warfare by using the Sussex Pledge.
They flew American flags
If you were found to speak against the war effort, you were imprisoned.
Espionage Act/Sedition Act
Isolationism