Soldiers of the U.S. 11th Armored Cavalry Regiment are silhouetted atop their tank by the glare of tracer bullets in Cambodia, July 6, 1970. In an exercise known as Mad Minute, they spray the area around them, possibly infiltrated by enemy patrols, before they move on. (AP Photo/Henri Huet)

Use Information This content is intended for editorial use only.
For other uses, additional clearances may be required.