This is the diary of a young officer in the Royal Engineers serving with the British Army. He was present in the Iberian Peninsula from 1808 to his death in 1812. His diary covers the period from 1808 to 1810, where he served in the Corunna and Talavera campaigns before being ordered to work on building the Lines of Torres Vedras. The books outlines his early life and continues up to his death.