"Military History of the 123rd Ohio Volunteer Infantry Regiment" is a detailed scholarly essay that tells the story of the activities of one of the regiments that participated in the Civil War in the United States of America. The author examines in detail military operations, battles and events that happened to the regiment during the war. The book recounts the heroism of the soldiers, the hardships they had to face, and the contribution of the 123rd Regiment to the overall history of the war between the North and the South. Armor, battle tactics, soldiers' life and their life in the rear are also described in detail. This book will be a useful source of information for historians, military researchers and anyone interested in military history.