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Belligerents
Alliances
Campaigns
War Technologies
People
100
The "sick man of Europe," this nation fought for its independence against several European nations, such as the UK, to avoid being colonized.
What is the Ottoman Empire?
100
France allied with this country so both could protect each other in case of invasion.
What is Russia?
100
The war officially began when Austria-Hungary invaded this country.
What is Serbia?
100
This gas caused many deaths during WWI with its burning, corrosive properties.
What is mustard gas?
100
The assassination of this important Austro-Hungarian leader began WWI.
Who is Archduke Franz Ferdinand?
200
Which East Asian country largely avoided becoming involved in WWI and instead greatly developed its economy?
What is Japan?
200
These nations made up the Triple Alliance during WWI.
What are Austria-Hungary, Germany, and the Ottoman Empire?
200
These were the two main battlefields within continental Europe during WWI.
What are the Eastern and Western fronts?
200
This type of armored military vehicle was first widely used during the First World War.
What is the tank?
200
This US president was in office during WWI and when American soldiers were being sent to fight.
Who is Woodrow Wilson?
300
This nation had the strongest army in WWI.
What is Germany?
300
These nations made up the Triple Entente, the rivals of the Triple Alliance.
What are France, Russia, and the UK?
300
This battle claimed the most lives of any during WWI.
What is the Battle of the Somme?
300
These new ocean-going vessels were used for the first time during WWI.
What are submarines?
300
He was the emperor of Germany during WWI.
Who is Wilhelm II?
400
This country was one of the latest to join in the fighting.
What is the United States?
400
The United States was allied with this side of the conflict during WWI.
What is the Triple Entente?
400
This was the name of the main military campaign on Ottoman soil during WWI.
What is the Gallipoli Campaign?
400
This new type of gun was first widely used during WWI.
What is the machine gun?
400
This Serbian nationalist assassinated the Austro-Hungarian archduke, causing WWI to begin.
Who was Gavrilo Princip?
500
In the aftermath of the war, the Ottoman Empire became this modern-day country.
What is Turkey?
500
This agreement meant that the UK would also be aligned with France and Russia in case of war.
What is the Anglo-Russian convention?
500
This was the name of the type of warfare often seen in Europe during WWI, especially on the Western Front.
What is trench warfare?
500
This new form of aviation technology was used for the first time in WWI.
What is the airplane?
500
This general was an important figure in the Ottoman Empire during the WWI era and later became the founder of the modern Republic of Turkey.
Who is Mustafa Kemal Ataturk?