Secret Weapons: A Tale of the Revolutionary War
Hitler's Secret Weapons
David Porter
Hitler's Secret Weapons of Mass Destruction: The Nazis' Plan for Final Victory
The Art of Spiritual Warfare: The Secret Weapons Satan Can't Withstand, Paperback
Venatius Oforka
Reich of the Black Sun: Nazi Secret Weapons & the Cold War Allied Legend
Hitler's Suppressed and Still-Secret Weapons, Science and Technology