This book is about the invisible wound of war, Post Traumatic Stress Disorder. In a semi-memoir format, it explains the historical development of PTSD, its myriad symptoms and the scientifically verified psychological and medical treatments for the disorder. It also investigates the exciting new research into its neurobiological foundations. Combining the basic tenets of cognitive psychotherapy and his own military experience, the author has developed and refined many unique therapeutic ideas and insights; these are described in detail and in plain language. (Just for example, the reader will learn that the Bible's Fourth Commandment is usually mistranslated and awareness of this can help a combat veteran ease guilt over killing the enemy.) Because it is a hidden, psychological wound, veterans afflicted with PTSD may find it difficult to understand their symptoms. Veterans and their families can better understand PTSD by reading this book.