THE WAR
This assassination in June 1914 helped trigger the chain of events that led to World War I.
What is the assassination of Archduke Franz Ferdinand?
He was the emperor of Germany when World War I began.
Who is Kaiser Wilhelm II?
This 1916 battle became one of the bloodiest battles of the war and lasted for about five months.
What is the Battle of the Somme?
World War I began in this year.
What is 1914?
This weapon was used extensively in World War I and could fire hundreds of rounds per minute.
What is the machine gun?
This alliance included Germany, Austria-Hungary, and the Ottoman Empire during most of the war.
What is the Central Powers?
He was the heir to the Austro-Hungarian throne whose assassination sparked the July Crisis.
Who is Archduke Franz Ferdinand?
This 1916 battle between Germany and France became a symbol of French determination.
What is the Battle of Verdun?
The United States entered World War I in this year.
What is 1917?
Germany became infamous for using this chemical weapon which could cause severe damage to the lungs.
What is poison gas?
This alliance included Britain, France, Russia, and later the United States.
What is the Allied Powers?
This country entered the war on the Allied side in 1915 after initially declaring neutrality.
What is Italy?
This 1915 campaign was an Allied attempt to open a route to Russia through the Ottoman Empire.
What is the Gallipoli Campaign?
The Russian Revolution led Russia to leave the war during this year.
What is 1917?
These armored vehicles were first used by the British in significant numbers during the Battle of the Somme.
What are tanks?
This term describes the military strategy in which armies fought from long defensive ditches and fortifications.
What is trench warfare?
This Russian emperor ruled Russia when World War I began and abdicated during the Russian Revolution.
Who is Tsar Nicholas II?
This 1918 battle was one of the first major offensives involving large numbers of American troops.
What is the Battle of Saint-Mihiel?
The armistice that ended the fighting on the Western Front was signed on November 11 of this year.
What is 1918?
This type of submarine was used by Germany to attack Allied and neutral shipping.
What is a U-boat?
This European region was often called the "powder keg of Europe" because of its political and ethnic tensions before the war.
What is the Balkans?
This country joined the Allies in 1917, providing fresh troops and enormous economic resources.
What is the United States?
This 1918 German offensive on the Western Front was Germany's last major attempt to break through Allied lines before the war ended.
What is the Spring Offensive?
The Treaty of Versailles was signed in this year.
What is 1919?
This military technology allowed aircraft to be used for reconnaissance, artillery spotting, and eventually bombing and aerial combat.
What is the military airplane?