you cited a very interesting point, I was reading some of the world's history and came across an interesting site.
A Brief History of U.S. Interventions:
1945 to the Present
by William Blum
The engine of American foreign policy has been fueled not by a devotion to any kind of morality, but rather by the necessity to serve other imperatives, which can be summarized as follows:
* making the world safe for American corporations;
* enhancing the financial statements of defense contractors at home who have contributed generously to members of congress;
* preventing the rise of any society that might serve as a successful example of an alternative to the capitalist model;
* extending political and economic hegemony over as wide an area as possible, as befits a "great power."
This in the name of fighting a supposed moral crusade against what cold warriors convinced themselves, and the American people, was the existence of an evil International Communist Conspiracy, which in fact never existed, evil or not.
The United States carried out extremely serious interventions into more than 70 nations in this period
China, 1945-49:Intervened in a civil war, taking the side of Chiang Kai-shek against the Communists, even though the latter had been a much closer ally of the United States in the world war. The U.S. used defeated Japanese soldiers to fight for its side. The Communists forced Chiang to flee to Taiwan in 1949.
Italy, 1947-48:Using every trick in the book, the U.S. interfered in the elections to prevent the Communist Party from coming to power legally and fairly. This perversion of democracy was done in the name of "saving democracy" in Italy. The Communists lost. For the next few decades, the CIA, along with American corporations, continued to intervene in Italian elections, pouring in hundreds of millions of dollars and much psychological warfare to block the specter that was haunting Europe.
Philippines, 1945-53:U.S. military fought against leftist forces (Huks) even while the Huks were still fighting against the Japanese invaders. After the war, the U. S. continued its fight against the Huks, defeating them, and
then installing a series of puppets as president,
culminating in the dictatorship of Ferdinand Marcos.
Germany, 1950s:The CIA orchestrated a wide-ranging campaign of sabotage, terrorism, dirty tricks, and psychological warfare against East Germany. This was one of the factors which led to the building of the Berlin Wall in 1961.
Iran, 1953:Prime Minister Mossadegh was overthrown in a joint U.S./British operation.
Mossadegh had been elected to his position by a large majority of parliament, but he had made the fateful mistake of spearheading the movement to nationalize a British-owned oil company, the sole oil company operating in Iran.
The coup restored the Shah to absolute power and began a period of 25 years of repression and torture, with the oil industry being restored to foreign ownership, as follows: Britain and the U.S., each 40 percent, other nations 20 percent.
Guatemala, 1953-1990s:A CIA-organized coup overthrew the democratically-elected and progressive government of Jacobo Arbenz,
initiating 40 years of death-squads, torture, disappearances, mass executions, and unimaginable cruelty, totaling well over 100,000 victims -indisputably one of the most inhuman chapters of the 20th century. Arbenz had nationalized the U.S. firm, United Fruit Company, which had extremely close ties to the American power elite. As justification for the coup, Washington declared that Guatemala had been on the verge of a Soviet takeover, when in fact the Russians had so little interest in the country that it didn't even maintain diplomatic relations. The real problem in the eyes of Washington, in addition to United Fruit, was the danger of Guatemala's social democracy spreading to other countries in Latin America.
Vietnam, 1950-73:The slippery slope began with siding with ~ French, the former colonizers and collaborators with the Japanese, against Ho Chi Minh and his followers who had worked closely with the Allied war effort and admired all things American. Ho Chi Minh was, after all, some kind of Communist. He had written numerous letters to President Truman and the State Department asking for America's help in winning Vietnamese independence from the French and finding a peaceful solution for his country. All his entreaties were ignored. Ho Chi Minh modeled the new Vietnamese declaration of independence on the American, beginning it with "All men are created equal. They are endowed by their Creator with ..." But this would count for nothing in Washington. Ho Chi Minh was some kind of Communist.
Twenty-three years and more than a million dead, later, the United States withdrew its military forces from Vietnam. Most people say that the U.S. lost the war. But by destroying Vietnam to its core, and poisoning the earth and the gene pool for generations,
Washington had achieved its main purpose:
preventing what might have been the rise of a good development option for Asia. Ho Chi Minh was, after all, some kind of communist.
Cambodia, 1955-73:Prince Sihanouk was yet another leader who did not fancy being an American client. After many years of hostility towards his regime, including assassination plots and the infamous Nixon/Kissinger secret "carpet bombings" of 1969-70, Washington finally overthrew Sihanouk in a coup in 1970. This was all that was needed to impel Pol Pot and his Khmer Rouge forces to enter the fray. Five years later, they took power. But five years of American bombing had caused Cambodia's traditional economy to vanish. The old Cambodia had been destroyed forever.
Incredibly, the Khmer Rouge were to inflict even greater misery on this unhappy land. To add to the irony, the United States supported Pol Pot, militarily and diplomatically, after their subsequent defeat by the Vietnamese.
The Congo/Zaire, 1960-65:In June 1960,
Patrice Lumumba became the Congo's first prime minister after independence from Belgium. But
Belgium retained its vast mineral wealth in Katanga province, prominent Eisenhower administration officials had financial ties to the same wealth, and Lumumba, at Independence Day ceremonies before a host of foreign dignitaries, called for the nation's economic as well as its political liberation, and recounted a list of injustices against the natives by the white owners of the country. The man was obviously a "Communist." The poor man was obviously doomed.
Eleven days later, Katanga province seceded, in September, Lumumba was dismissed by the president at the instigation of the United States, and in January 1961 he was assassinated at the express request of Dwight Eisenhower. There followed several years of civil conflict and chaos and the rise to power of Mobutu Sese Seko, a man not a stranger to the CIA. Mobutu went on to rule the country for more than 30 years, with a level of corruption and cruelty that shocked even his CIA handlers. The Zairian people lived in abject poverty despite the plentiful natural wealth, while Mobutu became a multibillionaire.
Afghanistan, 1979-92:Everyone knows of the unbelievable repression of women in Afghanistan, carried out by Islamic fundamentalists, even before the Taliban. But how many people know that during the late 1970s and most of the 1980s, Afghanistan had a government committed to bringing the incredibly backward nation into the 20th century, including giving women equal rights? What happened, however, is that the United States poured billions of dollars into waging a terrible war against this government, simply because it was supported by the Soviet Union. Prior to this, CIA operations had knowingly increased the probability of a Soviet intervention, which is what occurred. In the end, the United States won, and the women, and the rest of Afghanistan, lost. More than a million dead, three million disabled, five million refugees, in total about half the population.
http://www.thirdworldtraveler.com/Blum/US_Interventions_WBlumZ.html 
