In 1991, the United States initiated Operation Provide Relief (UNOSOM I) which was part of a United Nations (UN) endorsed effort called The Unified Task Force (UNITAF), to provide humanitarian relief. In August 1992, President George H. Bush sent, 25,000 US troops (mostly US Marines from I MEF) to the Republic of Somalia and the mission was renamed Operation Restore Hope, also known as UNOSOM II. Its main objectives were to provide humanitarian relief, initiate 'nation building', disarm the various factions, restore law and order, help the people set up a representative government, and restore the infrastructure.