Richard Estep, author and researcher, has written twenty books, including Serial Killers: The Minds, Methods, and Mayhem of History's Most Notorious Murderers. He has also written for the Journal of Emergency Medical Services. He makes his home in Colorado, a few miles north of Denver, where he serves as a paramedic and lives with his wife and a menagerie of adopted animals.

"A thorough review of the history and achievement of the U.S. Army, Navy, Marines, Air Force, Coast Guard, Space Force, and Special Forces from 1776 to the present day"--