'Wiltshire's Military Heritage' explores the long military history of the county. It includes the battles that took place on its soil, including those between Anglo-Saxon kingdoms and the Vikings, as well as those that took place furing the English Civil War. Powell also digs into the measures taken to defend the county against possible attacks, including a dive into the history of the locally raised regiments, the Royal Wiltshire Yeomanry and, later, the Royal Wessex Yeomanry.