"Colonial policy is the daughter of industrial policy." --Jules Ferry
"I respect those who have fallen bravely, but they have reaped what they have sown. ... They attack the Vietnamese, violate their rights, then call them murderers when they defend themselves." --contemporary of captain Henri Rivière, 1883
You only have to read the first two chapters to understand the origins of the conflict in Vietnam, and why it should never have happened.
Most if not all of the world's present conflicts have their roots in colonialism. If not for European powers expanding into African, South American, and Asian nations to exploit the resources and the cheap labor, spreading the idea that capitalism equals oppression and foreign invasion, communism would never have risen up as a preferable alternative. As with terrorism today, freedom from foreign rule was the goal.
It began in the 1800's when the French (acting on behalf of vested business interests but using the "humanitarian" excuse of protecting French missionaries in the region) invaded, installed a puppet government to keep the people quelled, and took land and resources but gave little back to the people.
Resentment stewed for almost a century until WWII. Japan, seeking colonies of its own in order to gain prominence as a world power (as European nations had done for centuries), expanded into other nations, including the region encompassing Vietnam. The Vietnamese rebelled against the Japanese and continued to rebel past the official end of the second World War. Many of these factions united under the banner of Communism, but their mission was autonomy for Vietnam and ending the oppressive colonial practices. The US funded France's efforts to hold onto their Asian colony, but eventually the French were defeated, and a peace conference in Geneva negotiated a ceasefire which split the country into North and South, similar to Korea.
The US funded and defended the government in the South, under president Diem, while the Soviet Union and China gave aid to the North, under Ho Chi Minh. Elections were supposed to be held to reunify the country under one government with representation by all factions, but the regime in the South had no interest in sharing power within a democratic system. Instead of winning the hearts and minds and the people, the leaders were more concerned with consolidating power and removing dissident voices. The United States became associated with this oppressive regime in the minds of the people. The result was public resentment, which drove many people to sympathize with the communists, believing if this was democracy, the other side can only be better.
The US had a covert interest in seeing the South Vietnamese government succeed, as they believed the communists in the North were mere puppets of the Soviet Union. As years went by, and the corruption only bred more contempt among the people in the South, the US became frustrated with the government it sponsored. So frustrated they did not object when the military ousted president Diem in 1963.
The US hoped a new president would step forward and form a cohesive government, but instead the military generals fought amongst each other for power and were just as bad as Diem, if not worse. The US increasingly had to prop up the government just to keep the North from invading, and the rebellious factions in the South from rising up and overthrowing the regime, possibly turning it over to communist control.
The United States continued to support the "democratic" government of the South while conducting covert strikes against the communists to the North. Eventually the communists figured out the US was behind these attacks, caught them in the act, and defended themselves. The US considered it an act of aggression.
The incident used to justify overt military action was an exaggeration and did not really involve the North Vietnamese at all: US ships off the coast of North Vietnam believed enemy vessels had intercepted them. The US ships opened fire, but by the time the smoke cleared, there was nothing there. No evidence of enemy vessels. Johnson knew this, but he began bombing anyway, hoping to subdue the enemy into negotiations and end the stalemate. Bombing the North became the primary strategy of the war right up to the early 1970's, but it failed to destroy much of value, and it did not cripple the North militarily in any way.
Both sides wanted peace, but neither wanted to compromise. The communists wanted the entire country unified under their rule, without foreigners influencing the government behind the scenes. The US and the South Vietnamese government wanted to rule the nation their way, more or less as it had been in French colonial days. Neither side trusted the other to abide by the terms of any agreement.
Thus peace stalled while bombing and fighting continued. The war consumed Johnson and was largely the reason he chose not to seek a second term. Bombing the enemy into submission did not work, soldiers on the ground could not engage the enemy in the jungles, and victories were never decisive, with neither side able to hold onto territory it acquired for very long before the other side took it back. It should have been a simple victory for the United States, and yet nothing worked.
Nixon, responding to public demand and the political climate, began to withdraw troops from combat. Peace was negotiated, but neither North Vietnam nor the South intended to honor the accord. They had been burned by peace agreements in the past, so they did not trust anyone to share power. The South could not form a cohesive government to defend itself, and now there were fewer American troops in the country, so the communists swept in and took control.
While Marx and Engels were very clear about revolution, they were very vague on what to do once communism gained power. The communists tried to reorganize society along Soviet (not Marxist) principles, but it did not work. Allowing foreign businesses into the country was the only way to rebuild the nation and keep the people from starving. Idealism didn’t win either way.
A lengthy, exhaustive, often tedious read that should have been condensed in places, this is indeed a definitive account of the conflict from a political point of view. Somebody should have stood up and said "these people are fighting for their freedom and their right for self-determination, just as America did in the past, so why not let them have it?" It's never that simple when there's money to be made.
So... the questions everyone asks: why were we there? Why did the French fight this war? Why did the United States get involved? What was it about? France fought to keep colonial relations in tact. Too many businesses had a profitable stake in the region to let it go. It was about money, as well as national pride after the Nazi occupation. The United States took over to ensure the government that came out of the war for independence was favorable to US interests. By the time it reached full-scale war, it's likely nobody remembered it that way. Perhaps the leadership of the United States believed communism was a disease that threatened to infect the world, and the Soviets would gain allies that might challenge the United States for power. In short, the US wanted the government of Vietnam to be useful for the West, while the Communists wanted autonomy.
If only someone had stopped and questioned why the "disease" of communism existed in the first place, and if the West was in fact the cause.