FILE - U.S. Air Force bombs create a curtain of flying shrapnel and debris barely 200 feet beyond the perimeter of South Vietnamese ranger positions defending Khe Sanh during the siege

 

              FILE - U.S. Air Force bombs create a curtain of flying shrapnel and debris barely 200 feet beyond the perimeter of South Vietnamese ranger positions defending Khe Sanh during the siege
FILE - U.S. Air Force bombs create a curtain of flying shrapnel and debris barely 200 feet beyond the perimeter of South Vietnamese ranger positions defending Khe Sanh during the siege of the U.S. Marine base, March 1968. (AP Photo/ARVN, Maj. Nguyen Ngoc Hanh, File)