The child was born Tuesday at a field hospital in Camp Bastion in the war-torn Helmand province, the government said in a statement.
The mother, a gunner with the Royal Artillery, arrived in Afghanistan in March after the child was conceived, a U.K. spokeswoman confirmed. The woman only discovered she was pregnant and about to give birth when she complained of stomach pain.
On Friday night, two U.S. personnel were killed and several others wounded in an attack on the adjoining Camp Leatherneck. The Taliban has also promised to do everything it can to kill the U.K.'s Prince Harry, who is based at Bastion.
The U.K. government statement added that it is "not military policy to allow service women to deploy on operations if they are pregnant." Both mother and baby are reportedly in stable condition.
Image: Army first aid bag, via Shutterstock