Battles
This battle was one of the deadliest in the war with over 1,000,000 casualties by its end.
The Battle of the Somme
This gas was largely used by both sides of the war to clear out trenches or encamped enemies
Mustard Gas
This country took the majority of the blame for WWI
Germany
The assassination of this man is largely credited with the starting of WWI
Franz Ferdinand
The date of the Armistice to end WWI
Nov 11 1918
This battle had the highest density of dead per sq ft.
The Battle of Verdun
This brought a new top down advantage to the battlefield and led to "Dog Fights"
The Airplane
The death of Franz Ferdinand from this country is largely credited for the start of WWI.
Austria-Hungary
Most of Europe is plunged into war after a relatively small conflict because of this pact with other countries
Alliances
This treaty officially ended WWI
The Treaty of Versailles
This series of battles was a failed attempt at opening a sea route for Russia to receive supplies.
The Gallipoli Campaign
These slow moving vehicles were able to navigate no mans land and cross trenched, at the cost of weighing over 28 tons.
Tanks
Which country joined the war last before ultimately leading to the end of WWI
United States
This is widely considered to the final straw for the Americans to intervene in WWI.
The Zimmerman Note
This person brought up the 14 points to end the war at the Paris Peace Conference
Woodrow Wilson
This battle was the largest battle America had ever taken place in up until this point in history.
Battle of the Argonne Forrest
This weapon huge target was filled with flammable gas, creating a large aerial target.
Zeppelins
Britain ended up joining the war only after the Germans started their invasion of which independent country as part of the Schlieffen Plan
Belgium
In 1917 Russia has to pull out of the war due to this
The Bolshevik/Russian Revolution
This was created in an effort to prevent a massive worldwide scale war from ever happening again
The League of Nations
This event led to a ceasefire on a holiday, with the forces infamously refusing to fight.
Christmas Day Truce
This weapon is largely credited with causing a stalemate in WWI
The Machine Gun
Austria-Hungary annexed this country, which led to members of the Black Hand to plan an assassination
Bosnia and Herzegovina
By the end of war these two major empires are broken up into many countries
Austria-Hungary and Ottoman Empires
This was the name given to the section of The Treaty of Versailles that gave Germany the full blame for WWI
War Guilt Clause