Why did the US invade Haiti?

The U.S. invaded Haiti in 1915 primarily to stabilize the country amid political turmoil and to protect American interests, particularly in the wake of the assassination of Haitian President Vilbrun Guillaume Sam. The invasion aimed to restore order and prevent the spread of unrest that could affect U.S. economic interests in the Caribbean. This military occupation lasted until 1934 and was characterized by efforts to establish a stable government and improve infrastructure, though it also faced significant local resistance and criticism for undermining Haitian sovereignty.