John Gregory Bourke's 'On The Border With Crook' is a seminal work that offers a firsthand account of General George Crook's campaigns against the Apaches and Sioux in the late 19th century. Bourke's writing style is scholarly and detailed, providing a wealth of information on military tactics, Native American cultures, and the harsh conditions of the American frontier. The book is a valuable resource for those interested in military history, Native American studies, and Western expansion. Bourke's inclusion of personal anecdotes and observations brings a human element to the historical narrative, making the book engaging and accessible to a wide audience. 'On The Border With Crook' is a must-read for anyone seeking a deeper understanding of the complexities of the American West and its impact on both the indigenous peoples and the settlers who clashed on its borders.