U.S. machine gunner Spc. 4 James R. Pointer, left, of Cedartown, Ga., and Pfc. Herald Spracklen of Effingham, Ill., peer from the brush of an overgrown rubber plantation near the Special Forces camp at Bu Dop during a half hour firefight, December 5, 1967. Their company-size patrol avoided an ambush when a patrol dog alerted the unit to the presence of enemy forces. (Photo by Horst Faas/AP Photo)





A U.S. Marine sniper seeks out Viet Cong with a high-powered rifle and scope near Que Son, Vietnam, December 13, 1965. (Photo by AP Photo)





Army Master Sgt. Douglas Davis of Santa Rita, N.M., finds his shoulders are a rest stop for his pet monkey, Tiger, at Tancanh, in South Vietnam's central highlands, December 30, 1962. Davis is assigned at Tancanh as a member of a U.S. Special Forces team training Montagnard mountain tribesmen to defend themselves against Communist Viet Cong. (Photo by Horst Faas/AP Photo)





U.S. infantrymen pray in the Vietnamese jungle December 9, 1965 during memorial services for comrades killed in the battle of the Michelin rubber plantation, 45 miles northwest of Saigon. (Photo by Horst Faas/AP Photo)





Comic strip and television hero Batman has joined the troops in Viet Nam, December 14, 1966. Here he rides an armored cavalry assault vehicle, a light tank that bristles with machine guns. (Photo by Horst Faas/AP Photo)





A U.S. marine throttles a Viet Cong prisoner flushed from a rice paddy by marines advancing through the Viet an valley on December 15, 1965. The marines are supporting South Vietnamese troops in an effort to seal off escape routes for a communist regiment long entrenched in the valley that marines have dubbed “Death Valley”. (Photo by AP Photo)





Photo shows Close Up of Rick Holmes of C company, 2nd battalion, 503rd infantry, 173 rd airborne brigade, sitting down on January 3, 1966 in Vietnam. (Photo by AP Photo)





In a sudden monsoon rain, part of a company of about 130 South Vietnamese regional soldiers moves downriver in sampans during a dawn attack against a Viet Cong camp in the flooded Mekong Delta, about 13 miles northeast of Cantho, on January 10, 1966. A handful of guerrillas were reported killed or wounded. (Photo by Henri Huet/AP Photo)





While carrying machine gun on one shoulder, L/Cpl. Henry Williams takes a few moments out from the business of war to play with kitten on other shoulder in South Vietnam on January 17, 1966. Williams found kitten in village that had been bombed and strafed by U.S. Air force planes minutes before in preparation for U.S. Marine attack on Ben Dau 3, some 15 miles southwest of Danang, South Vietnam. Williams is from Ferndale, New York. (Photo by Eddie Adams/AP Photo)





American troops pull a sand covered wooden box, in which enemy weapons were hidden, from a large hole in the Batangan Peninsular, 60 miles south of Danang, South Vietnam, on January 24, 1969. (Photo by AP Photo)





A South Vietnamese villager stands watches as her home goes up in flames in the coastal lowlands about 25 miles south of Da Nang, Vietnam on January 24, 1971. Her hut was set afire by South Vietnamese popular force troops after they found ammunition buried in her yard. (Photo by AP Photo)





First Cavalry Division medic Thomas Cole, of Richmond, Va., right, with one of his own eyes bandaged, continues to treat wounded Staff Sgt. Harrison Pell, of Hazleton, Pa., during a January 30, 1966 firefight at An Thi in the Central Highlands between U.S. troops and a combined North Vietnamese and Vietcong force. (Photo by Henri Huet/AP Photo)





Cpl. W.L Files of Charleston, WV, distributes his candy supply amongst these Vietnamese children who were being evacuated from their village near An Hoa on December 19, 1967 during the Vietnam War. (Photo by AP Photo)





A US Marine leads two Viet Cong suspects in restraints during the Tet Offensive on February 20, 1967. (Photo by Bettmann Archive/Getty Images)





In this early 1968 file photo, a South Vietnamese soldier takes a position on a Saigon street during the Tet Offensive. Early on the morning of January 31, 1968, as Vietnamese celebrated the Lunar New Year, or Tet as it is known locally, Communist forces launched a wave of coordinated surprise attacks across South Vietnam. The campaign, one of the largest of the Vietnam War, led to intense fighting and heavy casualties in cities and towns across the South. (Photo by Nick Ut/AP Photo)





In this February 23, 1968, file photo, a U.S. Air Force transport plane drops supplies during a low-level pass over the U.S. Marine base at Khe Sanh, South Vietnam. In foreground is a sandbagged bunker on the base's perimeter. The planes avoid landing because of frequent Communist shelling. Early on the morning of Jan. 31, 1968, as Vietnamese celebrated the Lunar New Year, or Tet as it is known locally, Communist forces launched a wave of coordinated surprise attacks across South Vietnam. The campaign, one of the largest of the Vietnam War, led to intense fighting and heavy casualties in cities and towns across the South. (Photo by John Sneider/AP Photo)





Two U.S. military policemen aid a wounded fellow MP during fighting in the U.S. Embassy compound in Saigon, January 31, 1968, at the beginning of the Tet Offensive. A Viet Cong suicide squad seized control of part of the compound and held it for about six hours before they were killed or captured. (Photo by AP Photo)





A South Vietnamese soldier fires a machine gun into burning buildings in northeastern Saigon where Viet Cong forces occupied several city blocks during the Tet Offensive, February 19, 1968. (Photo by Dang Van Phuoc/AP Photo)





In this early 1968, file photo, South Vietnamese troops tend to wounded people as bodies line a Saigon street during the Tet Offensive. Early on the morning of January 31, 1968, as Vietnamese celebrated the Lunar New Year, or Tet as it is known locally, Communist forces launched a wave of coordinated surprise attacks across South Vietnam. The campaign, one of the largest of the Vietnam War, led to intense fighting and heavy casualties in cities and towns across the South. (Photo by Eddie Adams/AP Photo)





A unit of the 1st Battalion, 5th Regiment U.S. Marines, rests alongside a battered wall of Hue's imperial palace after a battle for the Citadel in February 1968, during the Tet Offensive. The Marines reported heavy casualties in street fighting in the ancient capital city of Vietnam. (Photo by AP Photo)





In this August 1962 file photo shot by Associated Press photographer Horst Faas, South Vietnamese government troops from the 2nd Battalion of the 36th Infantry sleep in a U.S. Navy troop carrier on their way back to the Provincial capital of Ca Mau, Vietnam. Faas, a prize-winning combat photographer who carved out new standards for covering war with a camera and became one of the world's legendary photojournalists in nearly half a century with The Associated Press, died Thursday May 10, 2012. He was 79. (Photo by Horst Faas/AP Photo)





A Vietnamese monsoon downpour drenches men of the U.S. First Infantry Division as an Army helicopter waits for weather to clear so it can take off in a jungle clearing about 50 miles north-northwest of Saigon on November 23, 1965. The helicopter flew into the clearing to resupply troops with C-rations and water. The troops are on search and clear operations in the Viet Cong controlled area. (Photo by AP Photo/SJ)





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, November 29, 1969. (Photo by Horst Faas/AP Photo)





In his February 6, 1968, file photo, First Lt. Gary D. Jackson of Dayton, Ohio, carries a wounded South Vietnamese Ranger to an ambulance after a brief but intense battle with the Viet Cong during the Tet Offensive near the National Sports Stadium in the Cholon section of Saigon. Early on the morning of Jan. 31, 1968, as Vietnamese celebrated the Lunar New Year, or Tet as it is known locally, Communist forces launched a wave of coordinated surprise attacks across South Vietnam. The campaign, one of the largest of the Vietnam War, led to intense fighting and heavy casualties in cities and towns across the South. (Photo by Dang Van Phuoc/AP Photo)