This work investigates the evolution of the individual soldier from ancient antiquity to the modern era of the minuteman. S. E. Ellacott provides a chronological examination of military development, focusing on how weaponry, social structure, and tactical requirements have shaped the role of the combatant throughout history. The text utilizes historical analysis to trace the transition from primitive infantry formations to the specialized roles required by contemporary warfare.

Historians and military enthusiasts often cite this text as a comprehensive introductory survey of the history of the common soldier. Readers frequently note the accessible prose style, which effectively synthesizes complex military developments into a coherent historical narrative.