RENAMO opposed FRELIMO's attempts to establish a socialist one-party state, and was heavily backed by the anti-communist governments in Rhodesia and South Africa. For their part, the Rhodesian and South African defence establishments used RENAMO as a proxy to undermine FRELIMO support for militant nationalist organisations in their own countries. Over one million Mozambicans were killed in the fighting or starved due to interrupted food supplies; an additional five million were displaced across the region. The Mozambican Civil War destroyed much of Mozambique's critical rural infrastructure, including hospitals, rail lines, roads, and schools. FRELIMO's security forces and RENAMO insurgents were accused of committing numerous human rights abuses, including using child soldiers and salting a significant percentage of the countryside indiscriminately with land mines. Three neighboring states—Zimbabwe, Tanzania, and Malawi—eventually deployed troops into Mozambique to defend their own vested economic interests against RENAMO attacks.