While leading my squad on patrol, I instinctively turned around to signal to my men that the enemy is in the area and to pass it up to our platoon leader. As I turned around, I hear a faint metallic click at my foot...then the explosion. Instantly, I am traveling through the air, my steel pot (head gear) is traveling in one direction, my rucksack previously strapped to my body is traveling in another direction, I can see the visions of my life...