A coup in Haiti in 1991, followed by internal violence, was the impetus for the UN Mission in Haiti (UNMIH). In 1996 and 1997 three missions, UNSMIH, UNTMIH, and MIPONUH, were organized with the goal of reforming, training, and assisting the police through a period of political turmoil. A coup d'état in 2004 saw the ouster of the president and the UN authorized MINUSTAH to stabilize the country.