The Psychic Battlefield: A History of the Military-Occult Complex by W. Adam Mandelbaum. © 2000, St. Martin’s Press. ISBN 1-901250-46-6.
Mandelbaum provided a wealth of information on the history of the occult used in warfare – from past up to more current uses.
He also wrote about the US’s PsyOPs/PsyWar; remote viewing; and more modern psychic warfare.
I found his book to be both informative and I enjoyed how he presented his research.