Vietnam War: U.S. Troops

American troopers from the U.S. 11th Armored Cavalry have been clearing parts of the woods, known as the Ho Bo woods, 25 miles northwest of Saigon on May 27, 1971. (AP Photo/Rick Merron)

Sending a handwritten message to the enemy are troops from the 11th Armored Cavalry clearing the Bo Ho Woods area northwest of Saigon on May 27, 1971. (AP Photo/Rick Merron)

AP Photo/Rick Merron