Afghanistan: Mother speaks of soldier son killed in Helmand
7 October 2011 Last updated at 20:19 BST
A total of 382 British troops have been killed in Afghanistan over the last 10 years and many more have been wounded.
Their lives and those of their families have been changed forever by the conflict.
Margaret Evison, whose son Lt Mark Evison was killed whilst serving in the Army in Helmand province, speaks about her experience.