In 1917, this Allied nation withdrew from the war early to deal with a communist revolution led by Vladimir Lenin.
Russia
This country developed the 'Schlieffen Plan' to avoid a two-front war by quickly knocking France out of the conflict.
Germany
This 400-mile-long line of stalemate on the border of France and Germany was famous for its muddy, disease-ridden trenches.
Western Front
In 1917, this internal uprising led by Vladimir Lenin and the Bolsheviks forced Russia to overthrow its Tsar and quit the war.
Russian Revolution
This 28th U.S. President led the country through the Great War and proposed a peace plan known as the 'Fourteen Points
Woodrow Wilson
This island nation used its massive 'Grand Fleet' to blockade German ports and cut off their supplies for the duration of the war.
Great Britain
The assassination of this empire’s Archduke, Franz Ferdinand, is widely considered the 'spark' that started World War I.
Austria-Hungary
While the Western Front was in France, this 'Front' saw massive battles across the border of Germany and Russia.
Eastern Front
During World War I, this empire carried out a systematic campaign of mass deportations and killings against its Armenian Christian population.
Armenian Genocide
Although the Great War began in 1914, the United States did not officially declare war and join the fight until this year.
(Extra 100 points for the date)
1917
(April 6)
Most of the trench warfare on the Western Front took place on the soil of this Allied nation, which lost over a million soldiers defending its borders.
France
This empire, based in modern-day Turkey, joined the Central Powers and fought against the British and Russians during World War I.
Ottoman Empire
This was the early 20th-century name for the 'combat fatigue' and mental breakdown experienced by soldiers on the Western Front.
Shell Shock
He was the head of the radical Bolshevik party and became the first leader of the newly formed Soviet Union after the 1917 Revolution
Vladimir Lenin
While the treaty was signed later, the fighting actually stopped on this specific autumn date in 1918
Armistice Day, November 11, 1918
In 1917, Germany sent this secret coded message to Mexico, promising them U.S. territory like Texas and Arizona if they joined the war.
Zimmerman Telegram
In this type of naval combat, German U-boats would sink any merchant or passenger ship without warning, even those from neutral countries.
This painful medical condition was caused by soldiers standing in cold, wet, and unsanitary mud for days without changing their socks.
This term, meaning the deliberate killing of a large group of people, was later used to describe these events.
genocide
Signed in 1919, this treaty officially ended World War I and required Germany to pay massive amounts of money in reparations.
Treaty of Versailles
While the U.S. didn't join the war for two more years, the 1915 sinking of this 'unsinkable' liner turned American public opinion against Germany.
Sinking of the Lusitania
By signing this 'Clause' in 1919, Germany officially took the blame for the conflict, which justified the massive financial reparations they had to pay.
War Guilt Clause
In 1914, French and British troops stopped the German advance at this river, saving Paris from being captured early in the war
Battle of Marne
Historians use the acronym M.A.I.N. to describe these four long-term causes of the Great War.
Militarism, Alliances, Imperialism, and Nationalism
Presented to Congress in 1918, this was President Woodrow Wilson’s famous plan for a fair and lasting peace after the Great War.
Fourteen Points