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Vietnamization was a policy of the Richard Nixon administration during the Vietnam War to end the U.S.' involvement in the war and "expand, equip, and train South Vietnam's forces and assign to them an ever-increasing combat role, at the same time steadily reducing the number of U.S. combat troops". Brought on by the Viet Cong's Tet Offensive, the policy referred to U.S. combat troops specifically in the ground combat role, but did not reject combat by the U.S. Air Force, as well as the support to South Vietnam, consistent with the policies of U.S. foreign military assistance organizations. U.S. citizens' mistrust of their government that had begun after the offensive worsened with the release of news about U.S. soldiers massacring civilians at My Lai (1968), the invasion of Cambodia (1970), and the leaking of the Pentagon Papers (1971).
The name "Vietnamization" came about accidentally. At a January 28, 1969 meeting of the National Security Council, General Andrew Goodpaster, deputy to General Creighton Abrams and commander of the Military Assistance Command, Vietnam, stated that the Army of the Republic of Vietnam (ARVN) had been steadily improving, and the point at which the war could be "de-Americanized" was close. Secretary of Defense Melvin Laird agreed with the point, but not with the language: "What we need is a term like 'Vietnamizing' to put the emphasis on the right issues." Nixon immediately liked Laird's word.
Vietnamization fit into the broader détente policy of the Nixon administration, in which the United States no longer regarded its fundamental strategy as the containment of communism but as a cooperative world order, in which Nixon and his chief adviser Henry Kissinger were focused on the broader constellation of forces[clarification needed] and the bigger world powers. Nixon had ordered Kissinger to negotiate diplomatic policies with Soviet statesman Anatoly Dobrynin. Nixon also opened high-level contact with China. U.S. relations with the Soviet Union and China were of higher priority than South Vietnam.
Nixon said Vietnamization had two components. The first was "strengthening the armed force of the South Vietnamese in numbers, equipment, leadership and combat skills", while the second was "the extension of the pacification program [i.e. military aid to civilians] in South Vietnam." To achieve the first goal, U.S. helicopters would fly in support; however, helicopter operations were too much part of ground operations to involve U.S. personnel.[clarification needed] Thus, ARVN candidates were enrolled in U.S. helicopter schools to take over the operations. As observed by Lieutenant Dave Palmer, to qualify an ARVN candidate for U.S. helicopter school, he first needed to learn English; this, in addition to the months-long training and practice in the field, made adding new capabilities to the ARVN take at least two years. Palmer did not disagree that the first component, given time and resources, was achievable. However: "Pacification, the second component, presented the real challenge...it was benevolent government action in areas where the government should always have been benevolently active...doing both was necessary if Vietnamization were to work."
Lyndon Johnson's major political interests were domestic; the war interfered with his domestic focus, and he was eager end the war in a way that he considered politically acceptable. In 1967, Kissinger attended a Pugwash Conference of scientists interested in nuclear disarmament. Two participants approached Kissinger and offered a disavowable means of communication between the U.S. and the communist leadership. In particular, Raymond Aubrac, an official of the World Health Organization, knew Ho Chi Minh and agreed to carry a message.
After discussing the matter with Assistant Secretary of State William Bundy and Secretary of Defense Robert McNamara, a message was sent. Ho said he would be willing to negotiate if the U.S. bombing of North Vietnam under Operation Rolling Thunder ceased. Mai Van Bo, Hanoi's diplomatic representative in Paris, was named a point of contact. Since Hanoi would not communicate with an American official without a bombing halt, Kissinger served as an intermediary. Johnson made a speech in San Antonio on September 29, offering the possibility of talks. They were rejected, although brought up again in 1967.
The departure of Lyndon Johnson did not end the war; rather, it spread throughout Southeast Asia. The Tet Offensive (1968) was a political and media disaster. Newsman Walter Cronkite announced that he saw a stalemate as the best case scenario for the Tet Offensive. Other members of the press added to the call to retrench (reduce costs and spending). President Johnson's popularity plummeted and he announced a bombing halt on March 31, simultaneously announcing he would not run for re-election. Though he had low expectations, on May 10, 1968, Johnson began peace talks between U.S. and North Vietnamese in Paris. The war, however, continued.
Under the Nixon administration, Henry Kissinger, Nixon's chief adviser, asked the Rand Corporation to provide a list of policy options, prepared by Daniel Ellsberg. On receiving the report, Kissinger and Schelling asked Ellsberg about the apparent absence of a victory option; Ellsberg said "I don't believe there is a win option in Vietnam." While Ellsberg eventually did send a withdrawal option, Kissinger would not circulate something that could be perceived as defeat.
According to a record, prepared by Soviet Ambassador to the United States Anatoliy Dobrynin, of discussions between Dobrynin and Kissinger, the crux of the U.S. position, was progress still must be made at the Paris talks and, for domestic political reasons, Nixon "simply cannot wait a year for Hanoi to decide to take some new step and take a more flexible position." Dobrynin expressed the Soviet position that the U.S. needed to stop trying to divide the Paris Peace Talks into two parts:
Nixon directed the Joint Chiefs of Staff to prepare a six-step withdrawal plan. The Commandant of the Marine Corps General Leonard F. Chapman remembered, "I felt, and I think that most Marines felt, that the time had come to get out of Vietnam." Leading the ground force withdrawals, Marine redeployments started in mid-1969, and by the end of the year the entire 3rd Marine Division had departed.
We suffered large sacrifices and losses with regard to manpower and materiel, especially cadres at the various echelons, which clearly weakened us. Afterwards, we were not only unable to retain the gains we had made but had to overcome a myriad of difficulties in 1969 and 1970.
Some ARVN units, especially that had been operating closely with U.S. troops or using facilities, could quickly move into a dominant role in their areas.
Others ARVN units faced more of a challenge. For example, the ARVN 5th Division was directed to move from its existing base camp, Phu Cuong, to that of the U.S. 1st Infantry Division in Lai Khê, while the U.S. division moved southeast to Dĩ An. The ARVN unit had to retain its previous operational responsibility, while replacing a division that was far better equipped with helicopters than a standard U.S. division. At Phu Cong, Major General Nguyen Van Hieu, the 5th Division commander, was able to use a local Popular Force battalion for base security. The Popular Force battalions, however, did not move away from the area in which they were formed.[clarification needed]
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In 1969, Nixon ordered B-52 strikes against the People's Army of Vietnam (PAVN) bases and supply routes in Cambodia, which had been used as a sanctuary by South Vietnam forces. The orders for U.S. bombing of Cambodia were classified, and thus kept from the U.S. media and Congress. In a given strike, each B-52 normally dropped 42,000 lb (19,000 kg) of bombs, and each strike consisted of three or six bombers.
Much of North Vietnamese infiltration went through Cambodia. Nixon authorized unacknowledged bombing in Cambodia while U.S. ground troops were in South Vietnam. General Lon Nol had overthrown Prince Norodom Sihanouk in March 1970; who had presented himself as a neutralist while aware of the PAVN use of his country.
In June 1969, the Viet Cong and its allied organizations formed the Provisional Revolutionary Government of the Republic of South Vietnam (PRG), recognized by Hanoi as the legal government of South Vietnam. At that time, communist losses dating from the Tet Offensive numbered 75,000, and morale was faltering, even among the party leadership.
On April 30, 1970, responding to a Communist attempt to take Cambodia, Nixon announced a large scale US–ARVN incursion into Cambodia to directly hit the PAVN headquarters and supply dumps; the area bordered ARVN III Corps tactical zone.
The campaign began on May 1. The U.S. Task Force Shoemaker, of the 1st Cavalry Divisions, carried out B-52 strikes in the Fishhook area of Cambodia. T.F. Shoemaker operated with the ARVN Airborne Brigade. Separate ARVN operations took place in the Parrot's Beak area. III Corps tactical zone commander Do Cao Tri, the most visible ARVN leader, encouraged the deepest ARVN penetrations.
The incursion prevented the immediate takeover of Cambodia by Pol Pot and his Khmer Rouge, and cost the PAVN the supply line from the port of Sihanoukville. The Khmer Rouge broke with its North Vietnamese sponsors, and aligned with China. This made American involvement visible to the U.S. population, and there were intense protests, including deaths in a confrontation between rock-throwing protesters and National Guardsmen at Kent State University.
The first American soldier to die in Vietnam was a member of a communications intelligence unit. The U.S. intelligence collection systems, a significant amount of which (especially the techniques) were not shared with the ARVN, and, while not fully declassified, examples have been mentioned earlier in this article. The Communist side's intelligence operations, beyond the spies that were discovered, are much less known.
While there had been many assumptions that the South Vietnamese government was penetrated by many spies, and there indeed were many, a December 1969 capture of a Viet Cong communications intelligence center and documents revealed that they had been getting a huge amount of information using simple technology and smart people, as well as sloppy U.S. communications security. This specific discovery was by U.S. Army infantry, with interpretation by regular communications officers; the matter infuriated GEN Abrams — at the communications specialists. Before and after, there had been a much more highly classified, and only now available in heavily censored form, National Security Agency analysis of how the Communists were getting their information, which has led to a good deal of modern counterintelligence and operations security.
Some of the material from Touchdown also gave insight into the North Vietnamese intelligence system. For example, the NVA equivalent of the Defense Intelligence Agency was the Central Research Directorate (CRD) in Hanoi. COSVN intelligence staff, however, disseminated the tactically useful material. Their espionage was under the control of the Military Intelligence Sections (MIS), which were directed by the Strategic Intelligence Section (SIS) of CRD.
Subsequent congressional action banned further U.S. ground intervention outside the boundaries of South Vietnam, so the next major drive, Operation Lam Son 719, would have to be based on ARVN ground forces, U.S. air and artillery support, and U.S. advisory and logistical assistance.
The Vietnamization policy achieved limited rollback of Communist gains inside South Vietnam only, and was primarily aimed at providing the arms, training and funding for the South to fight and win its own war, if it had the courage and commitment to do so. By 1971, the Communists lost control of most, but not all, of the areas they had controlled in the South in 1967. The Communists still controlled many remote jungle and mountain districts, especially areas that protected the Ho Chi Minh Trail.
Commanded by Hoang Xuan Lam, known more for loyalty to Nguyen Van Thieu than for military talent, Saigon's effort to strike against one of these strongholds, Operation Lam Son 719, failed in 1971. The SVN forces, with some U.S. air support, were unable to defeat PAVN regulars. While the operation is detailed in a separate sub-article, the key issues were that the ARVN were inexperienced in executing large operations. They underestimated the needed forces, and the senior officers had developed in a context that rewarded loyalty rather than competence. Let there be no doubt that there were individual ARVN commanders that would be credit to any military, but, Thieu, like those RVN leaders before him, was constantly concerned at preventing a military coup. "...promotions were won in Saigon, not in battle. And vital to advancement was the avoidance of risk,even at the price of defeat."
Thieu relieved the operational commander, head of I Corps tactical zone commander Hoang Xuan Lam with the most respected combat commander in the ARVN, Do Cao Tri. Tri died 2.5 hours later in his first helicopter crash of inspection. It is known the crash was at low altitude; it has been argued it crashed due to mechanical failure or enemy fire. Certainly, mechanical failure was less demoralizing.
By the beginning of 1972, over 400,000 U.S. personnel had been withdrawn, virtually all combat troops. Politically, this let Nixon negotiate with China and the Soviet Union without the suggestion he was compromising U.S. soldiers in the field.
North Vietnam made a major conventional attack on the South, for which the U.S. provided major air support under Operation Linebacker I, which enabled the ARVN to regain substantial control. When North Vietnam, late in the year, left the negotiating table, Nixon authorized the intensive Operation Linebacker II campaign, which forced the North Vietnamese to negotiate; a peace treaty was signed and all U.S. combat forces withdrew.
The Armed Forces of the Republic of Vietnam had some excellent ground combat units, but still had very serious problems of command, control, and communications at division level and above.
Many units had become overdependent on American air support, and, while the RVN Air Force had not developed large-scale interdiction capability, they were also of varied quality for close air support. Beyond the issue that the Air Force was always fragmented to the corps commanders, they also did not receive various expected equipment upgrades. Photoreconnaissance was extremely limited.
Armored units had developed the greatest confidence in their ability to fight without U.S. air support. Ground commanders also learned that armored units were not for infantry support and static defenses, but needed to be used as mobile reserves. Neither North nor South Vietnam, however, ever really learned large-scale combined arms methods, compared to a NATO or Warsaw Pact level of proficiency.
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