Why did Napoleon fail to regain Haiti for France?

Napoleon failed to regain Haiti for France primarily due to a combination of strong resistance from Haitian revolutionaries, led by figures like Toussaint L'Ouverture and later Jean-Jacques Dessalines, and the harsh tropical conditions that plagued his troops. The French military faced significant losses from yellow fever and other diseases, which decimated their ranks. Additionally, the growing sentiment against colonialism and the commitment of Haitian leaders to independence further thwarted Napoleon's efforts. Ultimately, the failure at the Battle of Vertières in 1803 marked the end of French attempts to reestablish control, leading to Haiti's Declaration of Independence in 1804.