During his long career as an executive with a major international corporation, Robert Mueller developed a love of travel and an enthusiasm for visiting historic locations. He caught the battlefield bug when, as a child, he visited Gettysburg. Retirement brought him the opportunity to visit and study the battlefields of Europe. He is a member of the Midwest Writers Association and numerous military themed internet forums. Mr Mueller holds advanced degrees in physics and business administration. He served his military service in the US Army Signal Corps during the Vietnam era. Born and raised in Chicago, Mr Mueller and his wife now live in one of its north-west suburbs. They have three children and two grandchildren.