"Three Years in the Federal Cavalry" by Willard W. Glazier is a historical account written in the late 19th century. The book chronicles the author's experiences as a soldier in the Civil War, particularly focusing on the cavalry movements and engagements during the conflict, providing readers with a firsthand perspective of the events and atmosphere of the time. At the start of the work, Glazier reflects on the initial enthusiasm that swept through the North in response to the outbreak of the Civil War after the attack on Fort Sumter. Following the call to arms by President Lincoln, he recounts his decision to enlist in the cavalry and the vibrant spirit of camaraderie and determination present among recruits eager to defend their country. He describes in detail the early days of training, the challenges faced while adjusting to military life, and the complexities of soldiering, emphasizing both the excitement and harsh realities of camp life during the formative stages of their military careers. (This is an automatically generated summary.)