The Ministry of Defence and colleagues of Corporal Day have paid tribute to the solider killed in Afghanistan earlier this week.
Corporal Channing Day, a member of the Royal Army Medical Corps, had spent some time training at the army base in Catterick Garrison.
Lieutenant Colonel Phillip de Rouffignac, Commanding Officer, 3 Medical Regiment, said:
"Hugely popular with her friends in Preston, Catterick and in Afghanistan, Corporal Channing Day made the most of everything and had lived a lifetime in a short time.
An Army footballer, she was a real team player in every sense. Corporal Day will be sorely missed, and the thoughts of all our Regiment are with her family and friends at this difficult time."