Standing on the battlefield between David and Goliath was nothing like the heroic paintings I had imagined. Dust filled the air, fear was everywhere, and the giant looked horrifyingly human up close. I crouched with my camera just as David released the stone from his sling. At that exact moment, Goliath’s attention was disrupted when a terrified dog suddenly bit into his leg, causing the giant to bend downward in pain and confusion. A split second later, David’s stone struck him directly. The enormous warrior collapsed almost instantly, stunned more by surprise than by force. What shocked me most was how history itself seemed to pivot not only on courage and skill, but also on one desperate dog.