'Three Years in the Federal Cavalry' by Willard W. Glazier is a memoir that transports the reader to the American frontier of the 19th century. Glazier's first-hand account of serving in the 2nd New York Cavalry is based on his wartime journal and covers the period from the enlistment of the author in the summer of 1861 until his capture during the fall of 1863. This memoir provides an insight into the rise of the Federal cavalry from bumblers to a powerful and well-trained striking force, including details of cavalry training, daily and camp life, and cavalry battles.