'Our Girl' has been commissioned for a full series.
Lacey Turner will reprise her role as young army medic Molly Dawes in the follow-up series to the one-off BBC One drama, which aired earlier in the year.
The next series will follow Molly as she embarks on her first deployment to Afghanistan while examining the "extreme experience" of serving as an army medic on the front line and adjusting to the "normality" of life in the UK.
BBC One controller Charlotte Moore said: "Our Girl is a rite-of-passage story about a young soldier beautifully captured by Lacey Turner.
"In the same year when our British troops withdraw from Afghanistan, the series will follow the extreme life-changing experiences she is forced to face both on tour and when she returns back home."
The 25-year-old actress - who was known for playing Stacey Slater in 'EastEnders' - previously admitted she was shouted at by the real soldiers on the set of the show, but admits she was pleased to have such discipline in place as it made the programme more realistic to film.
She said earlier this year: "I asked them to watch me 24/7 because the Army is so strict: if even a thumb is out of place recruits have to do it again and again and again, and the same applied to me.
"A few times sergeants shouted at me - they mistook me for a real cadet because I was in the same uniform and didn't have my BBC badge."
'Our Girl' is set to return to screens in 2014.
Tagged in Lacey Turner