trench
Yes.
Yes.
"The World war 1 trench was the biggest I have found" or "The trench in the ocean was the biggest in the world"
Yes.
World War 1 introduced aerial warfare with airplanes and trench warfare
World war 1
World War I was fought by trench warfare.
The trench system was the place where the soldiers live and work
They died!
Communicatio
sap