When it acquired New Mexico and Arizona, the United States inherited the territory of a people who had been a thorn in side of Mexico since 1821 and Spain before that. Known collectively as Apaches, these Indians lived in diverse, widely scattered groups with many names--Mescaleros, Chiricahuas, and Jicarillas, to name but three. Much has been written about them and their leaders, such as Geronimo, Juh, Nana, Victorio, and Mangas Coloradas, but no...