"The author of this book was one of the most brilliant cavalry officers of the Empire. A pupil of Lasalle, of Montbrun, of Colbert, of Pajol, he appeared destined to the highest military honors, when the disaster of Waterloo overtook the Grand Army. In spite of his youth his tastes, his instincts, his experience, and the prospects of a brilliant military career, de Brack sheathed his sword.
Although withdrawn from the army, he was, however, no stranger to its progress and labors.
After fifteen years’ absence Lieutenant-Colonel de Brack resumed his place at the head of our squadrons.

Written with an intelligence vast and active, with a glowing heart, in an observing and delicate spirit, with a rare love for the soldier, this book, almost improvised, is a charming little masterpiece. At once witty and profound, the author, laying aside all prejudice, shows himself so original that certain parts, without ceasing to be true, have a perfume of poetry which charms the military reader.
De Brack never loses sight of the morale of the soldier ; he speaks of honor, of courage, of devotion, and his language makes one thrill. The style moves on at a cavalry pace, which is well adapted to the subject. "

(Préface to the third Edition)