It left an indelible impression on the Haitians, especially the poor who were slaughtered by US Marines and forced to work on chain-gangs they called "corvees".
Here's something from Chomsky. The entire article is worth a read. What the US needs to accomplish in Haiti is going to be accomplished very brutally because the Haitians remember the last time I don';t think they're going to roll over for another colonization.
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Year 501
The Conquest Continues
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By Noam Chomsky
Chapter Eight
The Tragedy of Haiti
1. "The First Free Nation of Free Men"
2. "Unselfish Intervention" ((this chapter spells a lot out))
3. "Politics, not Principle"
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1. "The First Free Nation of Free Men"
"Haiti was more than the New World's second oldest republic," anthropologist Ira Lowenthal observed, "more than even the first black republic of the modern world. Haiti was the first free nation of free men to arise within, and in resistance to, the emerging constellation of Western European empire." The interaction of the New World's two oldest republics for 200 years again illustrates the persistence of basic themes of policy, their institutional roots and cultural concomitants.
<snip / huge RELUCTANT snip>
The brutality and racism of the invaders, and the dispossession of peasants as US corporations took over the spoils, elicited resistance. The Marine response was savage, including the first recorded instance of coordinated air-ground combat: bombing of rebels (Cacos) who were surrounded by Marines in the bush. An in-house Marine inquiry, undertaken after atrocities were publicly revealed, found that 3250 rebels were killed, at least 400 executed, while the Marines and their locally recruited gendarmerie suffered 98 casualties (killed and wounded). Leaked Marine orders call for an end to "indiscriminate killing of natives" that "has gone on for some time." Haitian historian Roger Gaillard estimates total deaths at 15,000, counting victims "of repression and consequences of the war," which "resembled a massacre." Major Smedley Butler recalled that his troops "hunted the Cacos like pigs." His exploits impressed FDR, who ordered that he be awarded the Congressional Medal of Honor for an engagement in which 200 Cacos were killed and no prisoners taken, while one Marine was struck by a rock and lost two teeth.
The leader of the revolt, Charlemagne Péralte, was killed by Marines who sneaked into his camp at night in disguise. In an attempt at psywar that prefigured some of Colonel Edward Lansdale's later exploits in the Philippines, the Marines circulated photos of his body in the hope of demoralizing the guerrillas. The tactic backfired, however; the photo resembled Christ on the cross, and became a nationalist symbol. Péralte took his place in the nationalist Pantheon alongside of Toussaint.
The invaders "legalized" the Occupation with a unilateral declaration they called a "treaty," which the client regime was forced to accept; it was then cited as imposing on the US a solemn commitment to maintain the Occupation. While supervising the takeover of Haiti and the Dominican Republic, Wilson built his reputation as a lofty idealist defending self-determination and the rights of small nations with impressive oratory. There is no contradiction. Wilsonian doctrine was restricted to people of the right sort: those "at a low stage of civilization" need not apply, though the civilized colonial powers should give them "friendly protection, guidance, and assistance," he explained. Wilson's Fourteen Points did not call for self-determination and national independence, but rather held that in questions of sovereignty, "the interests of the populations concerned must have equal weight with the equitable claims of the government whose title is to be determined," the colonial ruler. The interests of the populations "would be ascertained by the advanced nations, who best comprehended the needs and welfare of the less advanced peoples," William Stivers comments, analyzing the actual import of Wilson's language and thinking. To mention one case with long-term consequences, a supplicant who sought Wilson's support for Vietnamese representation in the French Parliament was chased away from his doors with the appeal undelivered, later surfacing under the name Ho Chi Minh.5
Another achievement of Wilson's occupation was a new Constitution, imposed on the hapless country after its National Assembly was dissolved by the Marines for refusing to ratify it. The US-designed Constitution overturned laws preventing foreigners from owning land, thus enabling US corporations to take what they wanted. FDR later took credit for having written the Constitution, falsely it appears, though he did hope to be one of its beneficiaries, intending to use Haiti "for his own personal enrichment," Schmidt notes. Ten years later, in 1927, the State Department conceded that the US had used "rather highhanded methods to get the Constitution adopted by the people of Haiti" (with 99.9 percent approval in a Marine-run plebiscite, under 5 percent of the population participating). But these methods were unavoidable: "It was obvious that if our occupation was to be beneficial to Haiti and further her progress it was necessary that foreign capital should come to Haiti..., Americans could hardly be expected to put their money into plantations and big agricultural enterprises in Haiti if they could not themselves own the land on which their money was to be spent." It was out of a sincere desire to help the poor Haitians that the US forced them to allow US investors to take the country over, the State Department explained, the usual form that benevolence assumes.
<another even more reluctant snip>
http://cyberspacei.com/jesusi/authors/chomsky/year/y501_008.htm