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A U.S. infantryman of the 199th Light Infantry Brigade is seen on a joint Vietnamese/U.S. patrol near coffee and rubber plantations 50 miles northeast of Saigon, Nov. 29, 1969. (AP Photo/Horst Faas)

A U.S. infantryman of the 199th Light Infantry Brigade is seen on a joint Vietnamese/U.S. patrol near coffee and rubber plantations 50 miles northeast of Saigon, Nov. 29, 1969. (AP Photo/Horst Faas)


In this April 2, 1967 photo, wounded U.S. soldiers are treated on a battle field in Vietnam. (AP Photo/Horst Faas)

In this April 2, 1967 photo, wounded U.S. soldiers are treated on a battle field in Vietnam. (AP Photo/Horst Faas)


In this July 15, 1966 photo, U.S. Marines scatter as a CH-46 helicopter burns, background, after it was shot down near the demilitarized zone (DMZ) between North and South Vietnam. (AP Photo/Horst Faas)

In this July 15, 1966 photo, U.S. Marines scatter as a CH-46 helicopter burns, background, after it was shot down near the demilitarized zone (DMZ) between North and South Vietnam. (AP Photo/Horst Faas)


In this Jan. 1, 1966 photo, two South Vietnamese children gaze at an American paratrooper holding an M79 grenade launcher as they cling to their mothers who huddle against a canal bank for protection from Viet Cong sniper fire in the Bao Trai area, 20 miles west of Saigon, Vietnam. (AP Photo/Horst Faas)

In this Jan. 1, 1966 photo, two South Vietnamese children gaze at an American paratrooper holding an M79 grenade launcher as they cling to their mothers who huddle against a canal bank for protection from Viet Cong sniper fire in the Bao Trai area, 20 miles west of Saigon, Vietnam. (AP Photo/Horst Faas)


Paratroopers jump off rubber rafts in a combat crossing of the Song Be River in D Zone, some 30 miles northeast of Saigon, Vietnam on Sept. 30, 1966. The 173rd Airborne Brigade began Operation Sioux City with several helicopter assaults. Boats followed the troops and an hour later a company of the 2nd Battalion/173rd Airborne Brigade headed north across the 150 feet wide, fast flowing river, in rubber boats with outboard engines under cover of machine guns and air strikes. (AP Photo/Horst Faas)

Paratroopers jump off rubber rafts in a combat crossing of the Song Be River in D Zone, some 30 miles northeast of Saigon, Vietnam on Sept. 30, 1966. The 173rd Airborne Brigade began Operation Sioux City with several helicopter assaults. Boats followed the troops and an hour later a company of the 2nd Battalion/173rd Airborne Brigade headed north across the 150 feet wide, fast flowing river, in rubber boats with outboard engines under cover of machine guns and air strikes. (AP Photo/Horst Faas)


A U.S. Marine wipes tears from his face as he kneels beside a body wrapped in a poncho during a firefight near the demilitarized zone between North and South Vietnam, Sept. 18, 1966. Other casualties lie at the side of the road as fighting continued. (AP Photo/Horst Faas)

A U.S. Marine wipes tears from his face as he kneels beside a body wrapped in a poncho during a firefight near the demilitarized zone between North and South Vietnam, Sept. 18, 1966. Other casualties lie at the side of the road as fighting continued. (AP Photo/Horst Faas)


U.S. Marines run to their foxholes as North Vietnamese mortars begin zeroing in on their positions during Operation Hastings near the demilitarized zone between North and South Vietnam on July 17, 1966. (AP Photo/Horst Faas)

U.S. Marines run to their foxholes as North Vietnamese mortars begin zeroing in on their positions during Operation Hastings near the demilitarized zone between North and South Vietnam on July 17, 1966. (AP Photo/Horst Faas)


In this Jan. 16, 1966 photo, Lt. Col. George Eyster of Florida is placed on a stretcher after being shot by a Viet Cong sniper at Trung Lap, South Vietnam. (AP Photo/Horst Faas, File)

In this Jan. 16, 1966 photo, Lt. Col. George Eyster of Florida is placed on a stretcher after being shot by a Viet Cong sniper at Trung Lap, South Vietnam. (AP Photo/Horst Faas, File)


In this December 1965 photo, a U.S. 1st Division soldier guards Route 7 as Vietnamese women and school children return home to the village of Xuan Dien from Ben Cat, Vietnam. (AP Photo/Horst Faas)

In this December 1965 photo, a U.S. 1st Division soldier guards Route 7 as Vietnamese women and school children return home to the village of Xuan Dien from Ben Cat, Vietnam. (AP Photo/Horst Faas)



Seriously injured by shrapnel grenades planted in a booby trapped Viet Cong propaganda stall, a U.S. soldier awaits evacuation from Vietnamese jungle by ambulance helicopter being summoned by a radio operator behind him on Dec. 5, 1965. The soldier was attempting to tear down a Viet Cong bamboo structure used to dispense propaganda when two M 79 grenades planted in one of the poles exploded in his face. (AP Photo/Horst Faas)

Seriously injured by shrapnel grenades planted in a booby trapped Viet Cong propaganda stall, a U.S. soldier awaits evacuation from Vietnamese jungle by ambulance helicopter being summoned by a radio operator behind him on Dec. 5, 1965. The soldier was attempting to tear down a Viet Cong bamboo structure used to dispense propaganda when two M 79 grenades planted in one of the poles exploded in his face. (AP Photo/Horst Faas)


In this March 1965 photo, hovering U.S. Army helicopters pour machine gun fire into the tree line to cover the advance of South Vietnamese ground troops in an attack on a Viet Cong camp 18 miles north of Tay Ninh, Vietnam, northwest of Saigon near the Cambodian border. (AP Photo/Horst Faas)

In this March 1965 photo, hovering U.S. Army helicopters pour machine gun fire into the tree line to cover the advance of South Vietnamese ground troops in an attack on a Viet Cong camp 18 miles north of Tay Ninh, Vietnam, northwest of Saigon near the Cambodian border. (AP Photo/Horst Faas)


In this Nov. 27, 1965 photo, a Vietnamese litter bearer wears a face mask to keep out the smell as he passes the bodies of U.S. and Vietnamese soldiers killed in fighting against the Viet Cong at the Michelin rubber plantation, about 45 miles northeast of Saigon. (AP Photo/Horst Faas, File)

In this Nov. 27, 1965 photo, a Vietnamese litter bearer wears a face mask to keep out the smell as he passes the bodies of U.S. and Vietnamese soldiers killed in fighting against the Viet Cong at the Michelin rubber plantation, about 45 miles northeast of Saigon. (AP Photo/Horst Faas, File)


U.S. paratroopers send a burst of automatic weapon fire into the Vietnamese section of Plei Ho Drong on August 12, 1965 after someone shot at them. Troops who entered the village afterwards found only Montagnard tribesmen and no Viet Cong. (AP Photo/Horst Faas)

U.S. paratroopers send a burst of automatic weapon fire into the Vietnamese section of Plei Ho Drong on August 12, 1965 after someone shot at them. Troops who entered the village afterwards found only Montagnard tribesmen and no Viet Cong. (AP Photo/Horst Faas)