A Treatise on the Tactical Use of the Three Arms, Infantry, Artillery, and Cavalry, by Francis J. Lippitt, is a very important source for the study of military science. In his treatise, the author examines in detail the tactical aspects of the use of three main types of military weapons - infantry, artillery and cavalry. It not only reveals the specifics of each type of weapon, but also provides clear guidance on how they interact on the battlefield. Lippitt draws attention to important tactical principles, strategic thinking, and coordination between the three arms. It offers the reader a deeper understanding of the principles of military tactics and helps military strategists improve their planning and warfare skills. This book will be useful both for military specialists and for anyone interested in military affairs and the history of military conflicts.