The book "John Call Dalton, Doctor of the United States Army" is an unforgettable first-person account of the impressions and events experienced by the author, doctor John Call Dalton, during his service in the United States Army. In his book, he talks about his impressions of medical practice in the war, about the brutality of war, about the fate of the wounded and about his thoughts about military service. This book not only helps to better understand the importance of medical care in war, but also gives each reader the opportunity to immerse himself in the handwritten memories of a doctor from the front.