Final answer:
The primary labor force exploited during the Haitian Revolution for sugar and coffee production was mainly slavery, involving mostly enslaved Africans in brutal plantation conditions.
Step-by-step explanation:
The primary labor force in the context of the Haitian Revolution was mainly slavery. The French colony of Saint-Domingue, now known as Haiti, was extremely profitable due to its sugar and coffee production, which heavily relied on the labor of enslaved Africans. By the mid-1700s, over 500,000 of the colony's inhabitants were enslaved, primarily of sub-Saharan African descent, working on the plantations under brutal conditions. This oppression and exploitation of enslaved Africans was the leading cause of the Haitian Revolution, which began in 1791 and concluded with Haiti's independence in 1804.