Photograph of Vietnamese troops digging in on a hilltop. United Press International caption reads: Vietnamese government troops dig in on the hilltop outpost of Hiep Doc and watch artillery and air power hit Communist positions nearby. The troops and their American advisors fought their way thru Vietcong (Viet Cong) ground fire to retake the outpost which was overrun by the Communists. Photograph completed while on assignment for UPI-United Press International.