This event triggered the onset of World War I.
What are trenches?
This empire joined the war on the side of the Central Powers (Germany and Austria-Hungary).
What was the Ottoman Empire?
This nation joined the side of the Allies in 1917.
What is the United States?
This nation was (possible unfairly) blamed for starting World War I and forced to pay staggering amounts of war reparations.
What is Germany?
The assassins who assassinated the Archduke were linked with this nation.
What is Serbia?
The Western Front was primarily located between these two countries.
What are France and Germany?
What is Africa?
This nation left World War I by signing a separate peace agreement with Germany in 1917.
What is Russia?
The traumatized and disillusioned survivors of World War I became known as this.
What is the Lost Generation?
This was the first nation to declare war.
What was Austria-Hungary?
The Eastern Front was primarily located between these two countries.
What are Russia and Germany?
The Ottoman Empire primarily fought against this nation during World War I.
What is Britain?
The Ottoman Empire committed genocide towards this group of people at the end of World War I.
Who were the Armenians?
The collapse of the Ottoman Empire after World War I eventually led to the formation of this nation, its successor.
What is Turkey?
France and Britain both felt threatened by this nation's army, navy, and military conquests.
What is Germany?
These three inventions contributed to World War I becoming the deadliest war ever before seen in history.
What are the machine gun, artillery, and aircraft?
The majority of the British army was not actually British- they were conscripted from this colony.
What is India?
This was one of the reasons that the United States joined World War I.
What is the Zimmerman Telegram or the sinking of the Lusitania?
This was the United States president who brought forth the "fourteen points" at the Versailles peace negotiations.
Who is Woodrow Wilson?
These are the M.A.I.N. causes of World War I.
What are militarism, alliances, imperialism, and nationalism?
This was Germany's plan to quickly win World War I.
What was the Schlieffen Plan?
This was Winston Churchill's failed invasion of the Ottoman Empire.
What was the Gallipoli Campaign?
This was the revolution that transformed Russia into the Soviet Union and led it to exit the war.
What is the Bolshevik Revolution?
This was one of the new countries that was formed from the territory lost by Austria-Hungary and the Ottoman Empire.
What is Czechoslovakia, Yugoslavia, or Bulgaria?