Amanda Binnie's husband, Corporal Sean Binnie - from The Black Watch, 3rd Battalion The Royal Regiment of Scotland - died from a bullet wound while on a routine patrol with the Afghan National Army on 07 May 2009.
Amanda told BBC Radio 5 live's Victoria Derbyshire about the letter Sean wrote to her, which he had instructed her to open in the event of his death.
Victoria Derbyshire can be heard on
BBC Radio 5 live
from 1000-1300 every weekday.