The participation of these governments in the occupation of Haiti is a serious political contradiction for them, and it is getting worse. The Wikileaks cables illustrate how important the control of Haiti is to the United States.

A long memo from the US Embassy in Port-au-Prince to the US Secretary of State answers detailed questions about Haitian President Rene Preval's political, personal, and family life, including such vital national security questions as "How many drinks can Preval consume before he shows signs of inebriation?" It also expresses one of Washington's main concerns:

"His reflexive nationalism, and his disinterest in managing bilateral relations in a broad diplomatic sense, will lead to periodic frictions as we move forward our bilateral agenda. Case in point, we believe that in terms of foreign policy, Preval is most interested in gaining increased assistance from any available resource. He is likely to be tempted to frame his relationship with Venezuela and Chavez-allies in the hemisphere in a way that he hopes will create a competitive atmosphere as far as who can provide the most to Haiti."

This is why they got rid of Aristide – who was much to the left of Preval – and won't let him back in the country. This is why Washington funded the recent "elections" that excluded Haiti's largest political party, the equivalent of shutting out the Democrats and Republicans in the United States. And this is why MINUSTAH is still occupying the country, more than six years after the coup, without any apparent mission other than replacing the hated Haitian army – which Aristide abolished – as a repressive force.

People who do not understand US foreign policy think that control over Haiti does not matter to Washington, because it is so poor and has no strategic minerals or resources. But that is not how Washington operates, as the Wikileaks cables repeatedly illustrate. For the State Department and its allies, it is all a ruthless chess game, and the pawns matter. Left governments will be removed or prevented from taking power where it is possible to do so; and the poorest countries – like Honduras last year – present the most opportune targets. A democratically elected government in Haiti, due to its history and the consciousness of the population, will inevitably be a left government – and one that will not line up with Washington's foreign policy priorities for the region. Hence, democracy is not allowed.

Thousands of Haitians have been protesting the sham elections, as well as MINUSTAH's role in causing the cholera epidemic, which has already taken more than 2,300 lives and can be expected to kill thousands more in the coming months and years. Judging from the rapid spread of the disease, there may have been gross criminal negligence on the part of MINUSTAH – i.e. large-scale dumping of fecal waste into the Artibonite river. This is another huge reason for them to leave Haiti.

This is a mission that costs over $500 million a year, when the UN can't even raise a third of that to fight the epidemic that the mission caused, or to provide clean water for Haitians. And now the UN is asking for an increase to over $850 million for MINUSTAH.

It is high time that the progressive governments of Latin America quit this occupation, which goes against their own principles and deeply held beliefs, and is against the will of the Haitian people.

This column was published by The Guardian Unlimited (UK) on December 17, 2010.

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