By Sima Kotecha
18-year-old Hayden Hendricks is Britain's youngest front line soldier and is a part of 2nd Battalion, Royal Regiment of Fusiliers. He's based at Camp Bastion in Helmand province, Afghanistan.
He arrived in the country just days after his birthday and will soon start regular infantry patrols in the area. He talked to Newsbeat about his life in the army, why he joined, and what his mum thinks about it all.
What made you join the army?
My granddad was in the army so I was interested and then when my mates joined it made me even more interested.
What do you like about the job?
Every day is different. We always have a laugh with each other and the tasks just vary so much.
What went through your mind when you were told you had to go to Afghanistan?
I was excited because it was my first tour and when we go through training we get told we'll go on tour, so it's not just thrown upon you.
Were you scared?
Yes I was scared a bit but I was excited to be out there and making a difference.
Fusilier Hendricks says he's treated the same as older soldiers
How did your family react?
They were scared, but mum was supportive because my granddad was in the army so she knows the pros and cons of the army.
Do you find that you're treated differently because you're the youngest?
No. You've done the training so it's not about your age. You've got a job to do and everyone is treated the same.
Are you teased at all?
Yeah, sometimes. The others call me 'kid' and banter about, but it's just fun and for a laugh.
Do you think as a teenager you're capable of doing such a dangerous job?
It's hard to say really. You've got support and you've got people to talk to so there's no point in holding it in. Some days are different and you find it harder. It's harder when it's hot.
Do you wish you could be doing what other teenagers are, like going to the cinema and bars?
Sometimes I wish I could be a normal teenager but I chose this as a career and I don't regret it.