This nickname was given to World War I because of how massive it was.
THE GREAT WAR
This was the alliance of Germany, Italy, and Austria-Hungary.
Triple Alliance
World War I is often called the first __________ war.
Total
This U.S. president tried to remain neutral at first.
Woodrow Wilson
This peace treaty officially ended World War I in 1919.
Treaty of Versailles
This belief says a country should build a strong military and be ready to use it.
Militarism
This country was allied with Serbia and later Britain and France.
Russia
This part of total war means gathering soldiers, weapons, and supplies.
Mobilization
This British passenger ship was sunk by Germany in 1915, killing 128 Americans.
Lusitania
The fighting in WWI stopped on this date in 1918.
November 11, 1918
This cause of WWI involves strong pride and loyalty to one’s country.
Nationalism
Once countries began preparing troops for war, this process made it hard to stop.
Mobilization
This new technology allowed underwater attacks using torpedoes.
Submarines (U-boats)
This policy meant Germany would sink ships without warning.
Unrestricted submarine warfare
This clause forced Germany to accept blame for starting the war.
War Guilt Clause (Article 231)
These two alliance groups divided Europe before the war.
The Triple Alliance and the Triple Entente
Austria-Hungary was allied with this powerful European country that had built a huge army and navy.
Germany
This 1917–1918 global health crisis spread quickly because of troop movement and killed millions.
Influenza (Flu) Pandemic
In April 1917, the United States declared war on this country.
Germany
This international organization was proposed by Wilson to keep peace.
League of Nations
This assassination in 1914 sparked World War I.
Archduke Franz Ferdinand
This Serbian nationalist assassinated Franz Ferdinand.
Gavrilo Princip
This international agreement banned certain weapons before WWI but was often ignored.
Hague Conventions
This secret message promised Mexico land if it joined Germany against the U.S.
This extremist leader later rose to power in Germany and rejected the treaty’s limits.
Adolf Hitler