Article snapshot taken from Wikipedia with creative commons attribution-sharealike license.
Give it a read and then ask your questions in the chat.
We can research this topic together.
The Cluilian trench (Latin: Fossae Cluiliae) was a military trench that surrounded Rome made by the army of Alba Longa during the war between Alba Longa and Rome. It was named after the Alban king, Gaius Cluilius.