British soldiers in the First World War had to live in really basic and dangerous conditions in trenches.
They had special uniforms and kit to help them cope, for example masks to help them breathe during gas attacks.
Some things are similar to things modern day soldiers have but a lot has changed and improved since then.
Ricky spoke to WW1 military expert, Martin Featherstone about the tools they carried that could have been the difference between life and death.
All this kit was pretty heavy, especially when it rained.
Although to our eyes it might seem old-fashioned, at the time it was the latest gear.