This book brings readers into some of the greatest battles in history. They can walk alongside some of the mightiest armies, ones that shaped the world they know today. They will walk in the shoes of the Roman legionnaire and the Mongol rider, the Christian knight and the Sioux warrior, the Japanese Samurai and the Navy SEAL. They will learn about the origin of armies in ancient times and the army of the future.

Ancient times -- Middle Ages and modern age -- Contemporary age.