The Ethiopian People's Revolutionary Democratic Front (EPRDF) is a leftist political coalition in Ethiopia. The EPRDF consists of four political parties: Amhara Democratic Party (ADP), Oromo Democratic Party (ODP), Southern Ethiopian People's Democratic Movement (SEPDM), and Tigray People's Liberation Front (TPLF).
During the Ethiopian Civil War, the EPRDF was a rebel group battling the Derg, a military regime led by Mengistu Haile Mariam that was effectively in power from 1974 until it was ousted by the EPRDF in 1991. During this period, the Derg was responsible for the deaths of tens of thousands of opponents without trial in the Ethiopian Red Terror and the 1983–1985 famine in Ethiopia resulting in 400,000 deaths.
The EPRDF was formed by the union of the TPLF and the Ethiopian Peoples Democratic Movement (EPDM) in early 1989; they were later joined by the OPDO (the Oromo members of the TPLF, EPLF, and EPDM) and the Ethiopian Democratic Officers’ Revolutionary Movement (a small body of Derg officers captured by TPLF, most notably at Shire in February 1989, which was later disbanded after the establishment of the Transitional Government of Ethiopia).
In the early 1990s, following the collapse of the Derg, the EPRDF gained support from the United States. Michael Johns, an Africa expert with the Heritage Foundation, wrote in 1991 that "there are some modestly encouraging signs that the front intends to abandon Mengistu's autocratic practices