Rowland Hill was one of the Duke of Wellington's most trusted subordinates, known for caring deeply for the welfare of his men, but the battles of Arroyomolinos (1811) and Almaraz (1812) show that he was far more than just 'Daddy Hill' and a safe pair of hands. He was also a general of considerable skill and daring. At Arroyomolinos he led his troops for days through appalling weather to outmaneuver and then decimate an entire French division in a perfectly conceived surprise attack. At Almaraz he advanced far from allied lines to capture and then destroy a vital French bridge, overcoming considerable logistical challenges and substantial defenses, and paving the way for Wellington's victory at Salamanca.

For both actions, Hill used the same two British infantry brigades as well as Portuguese and Spanish units. The relatively small numbers of units involved has enabled the author to give greater focus on the individual regiments and the men who served in them than is often the case with larger battles. He uses memoirs, previously unpublished letters, and official returns and reports to paint a very detailed picture of two small but important battles of the Peninsular War and the men that fought them.