Countries
Definitions
Military Strategy
Weapons
100

An island country with the strongest navy in Europe.

Britain

100
A weapon that changed the face of battle.  It made cavalry charges pointless and ineffective.
The Machine Gun
100

The event that led to the outbreak of WWI

Assassination of Franz Ferdinand

100
Originally, these were designed for aerial observation.  Later, they were equipped with weapons.

Airplanes

200

The largest country in Europe (1914) - in terms of both population and physical size.

Russia

200

An agreement between two or more countries, guaranteeing that they will fight alongside each other in the event of war.

Alliance

200

The country that imposed a naval blockade on Germany's ports.

Britain

200
Also known as a "landship."  A large lumbering vehicle, invented to break the gridlock of trench warfare.

Tank

300
A country that unified in central Europe, throwing off the balance of power in Europe. 

Germany

300

A type of combat involving two sides digging in on opposite sides of "no-man's-land."

Trench Warfare

300

The phrase used to describe Britain and Germany's trying to produce a bigger navy than the other.

Naval Arms Race

300

A deadly yellow fog.

Poison Gas

400

This country hated Germany because they lost a humiliating war to Germany in the recent past.

France

400

Germany's decision to sink neutral ships without giving them a chance to surrender.

Unrestricted Submarine Warfare

400

The country Germany invaded to get through to France.

Belgium

400

The word for a German submarine.

U-Boat (or unterseeboot)

500

Germany's ally to the southeast.

Austria-Hungary

500

Germany's plan to attack France first, then head east to attack Russia.

Schlieffen Plan

500

Russia's was poorly developed, leading to belief that they would take a long time to mobilize their troops.

Railroad Network

500
A primitive weapon.  Carried by cavalry units at the beginning of the war.

Spear (or Lance)