How did Toussaint L'Ouverture help the U.S.?

Toussaint L'Ouverture played a crucial role in the U.S. by leading the Haitian Revolution, which helped to weaken French colonial power in the Caribbean. His successful revolt against French rule in Haiti (then Saint-Domingue) contributed to the eventual Louisiana Purchase in 1803, as France, under Napoleon, sought to focus its resources on Europe rather than maintaining its American territories. This acquisition doubled the size of the United States and facilitated westward expansion. L'Ouverture's actions also inspired slave revolts and movements for freedom across the Americas, influencing U.S. perspectives on slavery and independence.