From the few hundred soldiers in its ranks when it was first established, to the over one million service members today, the U.S. military has grown in power and size over its 250-year history. Its organization and branches have changed to adapt to new technologies and national needs. looks at each branch of the U.S. military. It answers more than 500 of the most intriguing questions, including … The Army, Navy, Air Force, Marines, Coast Guard, and Space Force are uniquely American, each in their own way. Learn what makes each branch special in ! With more than 140 photos and graphics, this fascinating to me is richly illustrated. Its helpful bibliography and extensive index add to its usefulness.