war
This was the primary trigger for World War I, involving the assassination of Archduke Franz Ferdinand.
What is the assassination of Archduke Franz Ferdinand?
This treaty, signed in 1919, officially ended World War I and imposed heavy reparations on Germany.
What is the Treaty of Versailles?
This weapon, widely used in World War I, involved the use of poisonous gas like chlorine and mustard gas.
What is chemical warfare?
These raids, led by U.S. Attorney General A. Mitchell Palmer, were intended to target suspected radicals and immigrants during the post-World War I period.
What are the Palmer Raids?
This global pandemic, which began in 1918, infected one-third of the world's population and caused millions of deaths.
What is the Spanish Flu?
The main alliance of Germany, Austria-Hungary, and the Ottoman Empire during World War I was known as this.
What is the Central Powers?
he signing of the Treaty of Brest-Litovsk in 1918 ended the war between Germany and this country.
What is Russia?
This long-range artillery weapon, nicknamed "Big Bertha," was used by Germany during World War I.
What is the 42 cm siege gun?
The Palmer Raids were a response to the fear of this political ideology spreading in the U.S. after the Russian Revolution.
What is communism?
This country's October Revolution in 1917 led to the establishment of a communist government under Lenin, influencing global politics for much of the 20th century.
What is Russia?
This battle, fought in 1916 between British and German forces, is considered one of the largest and bloodiest battles of World War I.
What is the Battle of the Somme?
This 1920 treaty officially ended hostilities between the Ottoman Empire and the Allied Powers, leading to the dissolution of the Ottoman Empire.
What is the Treaty of Sèvres?
This type of aircraft, used for reconnaissance and combat, became a symbol of air warfare during World War I.
What is the fighter plane?
The Palmer Raids resulted in the deportation of hundreds of individuals, many of whom were associated with this political ideology.
What is anarchism?
This 1919 international conference, held in Paris, was meant to prevent future conflicts and led to the signing of the Treaty of Versailles.
What is the Paris Peace Conference?
The U.S. entered World War I in 1917 after this event, where a German submarine sank a British ocean liner.
What is the sinking of the Lusitania?
This international organization, created by the Treaty of Versailles, was intended to prevent future conflicts but failed to prevent World War II.
What is the League of Nations?
The introduction of this vehicle, often associated with the British during World War I, revolutionized land warfare.
What is the tank?
This event, involving a series of bombings in the U.S. in 1919, contributed to the fear that led to the Palmer Raids.
What is the 1919 anarchist bombings?
This former Ottoman province, which gained independence after World War I, is now known as the Republic of Turkey.
What is Anatolia?
This major offensive in 1918, launched by the Allies, helped push back the Central Powers and bring the war to an end.
What is the Hundred Days Offensive?
The Treaty of Saint-Germain, signed in 1919, officially dissolved this empire, which had been a major power in Central Europe.
What is the Austro-Hungarian Empire?
This handheld firearm, widely used by infantry, was standard-issue for many soldiers during World War I.
What is the bolt-action rifle?
This organization, created during the Palmer Raids, was tasked with investigating suspected radicals and anarchists.
What is the FBI (Federal Bureau of Investigation)?
The end of World War I led to the collapse of four empires: the German, Austro-Hungarian, Russian, and this one, which controlled much of the Middle East.
What is the Ottoman Empire?