These long ditches, surrounded by barbed wire, were used for protection during World War I.
What are trenches?
Germany passed through this country on its way to invade France.
What is Belgium?
This weapon could fire repeatedly without having to reload, making trench warfare more dangerous.
What is the machine gun?
These flying machines were first used to scout enemy positions during World War I.
What are airplanes?
It is estimated that this many soldiers were killed during World War I.
What is 9.8 million?
This was the term for the dangerous mission of crossing “No man’s land” to attack enemy trenches.
What is "going over the top"?
Germany's plan was to capture this city quickly to secure the Western Front.
What is Paris?
These were originally made from empty bottles and were thrown more accurately by American soldiers.
What are grenades?
Later in the war, this type of weapon was mounted on airplanes to attack enemies.
What is a machine gun?
This number of soldiers were wounded during the war, in addition to those who died.
What is 20 million?
This area between enemy trenches was where soldiers were most exposed to fire
What is "No man’s land"?
What was the deadlock on the Western Front called?
What is a stalemate?
This type of gas was first used as a chemical weapon to choke and burn enemy soldiers
What is chlorine gas?
Zeppelins were often used for this purpose during World War I.
What is dropping bombs?
These two costs of the war are often left out of official casualty statistics
What are deaths from injuries after the war and psychological trauma?
The brutal method of combat used when soldiers reached the enemy trenches, involving bayonets and knives.
What is hand-to-hand combat?
This side of World War I was primarily fought between Germany, France, and Britain
What is the Western Front?
This piece of equipment was developed to protect soldiers from poison gas attacks.
What is the gas mask?
This was the primary purpose of airplanes in the early stages of World War I
What is reconnaissance/scouting?
This term describes the mental health struggles experienced by many soldiers after the war.
What is shell shock (or PTSD)?
Soldiers in trenches spent most of their time dealing with this unpleasant combination of smells and conditions.
What are rotting corpses, rats, and mud?
This side of World War I was primarily fought between Germany, France, and Britain
What is Russia?
These large airships were used to drop bombs from above during World War I
What are zeppelins?
This development in aerial combat allowed planes to fire through their propellers without damaging them.
What is the synchronization gear?
This is the number of years the war lasted, despite initial expectations of a quick conflict.
What is four years (1914-1918)?