The United States occupation of Haiti began on July 28, 1915, when 330 U.S. Marines landed at Port-au-Prince, Haiti, after the National City Bank of New York (now Citibank) convinced U.S. President Woodrow Wilson to take control of the country's political and financial interests. The occupation took place following years of socioeconomic instability within Haiti that culminated with the lynching of Haitian President Vilbrun Guillaume Sam by a mob angered by his executions of political prisoners.
During the occupation, Haiti had three new presidents while the United States ruled as a military regime through martial law, led by Marines and the U.S.-created Gendarmerie of Haiti. A corvée system of forced labor was used by the U.S. for infrastructure projects, resulting in hundreds to thousands of deaths. The occupation ended the constitutional ban on foreign ownership of land, which had existed since the foundation of Haiti.