Richard Cannon’s ‘Historical Record of the Eighty-Sixth, or the Royal County Down Regiment of Foot’ presents a meticulous examination of the regiment’s storied past, encapsulating its formation, key battles, and notable officers. Cannon employs a narrative style rich in detail, blending rigorous historical analysis with a flare for storytelling, immersing the reader in the complexities of military life during the 18th and 19th centuries. The text is framed within the broader context of British military history, shedding light on the social and political factors that influenced the regiment’s actions and legacy. Cannon, a distinguished military historian and former Deputy Adjutant-General of the British Army, draws upon extensive archival research and firsthand accounts to inform his portrayal of the Royal County Down Regiment. His personal connection to military lineage and extensive experience in the army provide him with unique insights into the regiment’s significance, imbuing the work with authenticity and depth. This background endows the narrative with both credibility and a nuanced understanding of the human experiences embedded within military history. This book is highly recommended for both scholars and enthusiasts of military history, providing an invaluable resource for understanding the legacy of the Eighty-Sixth Regiment. By intertwining personal narratives with rigorous historical documentation, Cannon invites readers to reflect on the intricate tapestry of courage, sacrifice, and service that defined this remarkable regiment.