The assassination of this man, the heir to the Austrian-Hungarian throne, is the event that officially triggered the start of World War I.
Who was Archduke Franz Ferdinand
This alliance included Great Britain, France, Russia, and eventually the United States
Who were the Allied Powers
This type of fighting involved soldiers living in and attacking from long, deep ditches dug into the ground for protection.
What is trench warfare
Because men were away fighting, women took over these types of jobs, working to make weapons and supplies.
What are factory or industrial jobs
This was the official peace agreement signed in 1919 that ended the state of war between Germany and the Allies.
What was the Treaty of Versailles
This British passenger ship was sunk by a German submarine in 1915, killing over 100 Americans and turning US public opinion against Germany.
What was the Lusitania
This side of the war was primarily made up of Germany, Austria-Hungary, and the ottoman Empire.
Who were the Central Powers
First used on a large scale in World War I, these "poison gases" required soldiers to wear masks to protect their lungs and eyes.
What is chemical warfare
This is the practice of limiting how much food, fuel, and clothing people can buy so that more supplies can be sent to soldiers.
What is rationing
Under the treaty, Germany was forced to do these things to "make up" for the war they started.
What are taking the blame, paying for the war, and losing land
This secret message from Germany to Mexico proposed an alliance against the US, promising Mexico land in Texas, New mexico, and Arizona if they started a war with the US.
What was the Zimmerman Telegram
M.A.I.N. is an acronym that stands for these four long-term causes that led European countries to take sides.
What is Militarism, Alliances, Imperialism, and Nationalism
This painful condition was caused by soldiers standing for long periods in cold, wet, and unsanitary mud inside the trenches.
What is trench foot
Many women served closer to the front lines in these two roles, helping to care for wounded soldiers.
What are nurses and ambulance drivers
This was an international organization proposed by Woodrow Wilson to help countries settle disputes peacefully and prevent future wars.
What was the League of Nations
These were German submarines used to attack enemy ships and block supplies from reaching Great Britain.
What are U-boats
This term means a powerful nation taking over smaller or weaker countries, turning them into colonies to gain resources, money, and power.
What is Imperialism
This was the dangerous, open space covered in barbed wire that lay between the trenches of the two opposing armies.
What is "No Man's Land"
American families were encouraged to plant these in their backyards to grow their own food and save farm produce for the troops.
What are Victory Gardens
Because it entered the war late and its land wasn't destroyed by fighting, the United States emerged from World War I as a leading world power, also know by this term.
What is a superpower
He was the US President who initially tried to keep America neutral but eventually asked Congress to declare war to "make the world safe for democracy".
Who was Woodrow Wilson
This "Empire" in the Middle East joined the Central Powers but was broken apart into different countries after the war ended.
What was the Ottoman Empire
This specific type of gas was feared because it stayed low to the ground and could cause painful blisters on a soldier's skin
What is mustard gas
Women's hard work during the war helped lead to the passage of the 19th Amendment which gave women this right.
What is the right to vote (suffrage)
The treaty required Germany to take the "War Guilt" meaning they had to accept total responsibility for this.
What is starting the war