Sharpe's Gold: The Destruction of Almeida, August 1810 (The Sharpe Series, Book 9) by Bernard Cornwell
Captain Sharpe's task is to recover from a feared guerilla leader the gold Wellington so desperately needs.
The enemy he faces strikes terror into the hearts of all around -a renegade guerilla band whose leader has a particular loathing for Sharpe who has stolen his woman.
Soldier, hero, rogue - Sharpe is the man you always want on your side. Born in poverty, he joined the army to escape jail and climbed the ranks by sheer brutal courage. He knows no other family than the regiment of the 95th Rifles whose green jacket he proudly wears.