The Soviet Union ended Process_end its support Supporting for the PDRE in the late-1980s and the government was overwhelmed Destroying by the increasingly victorious rebel groups .

In May 1991 , the PDRE was defeated Conquering in Eritrea and President Mengistu Haile Mariam fled Escaping the country .

The PDRE was dissolved Change and replaced Change_of_leadership with the Tigray People 's Liberation Front-led Transitional Government of Ethiopia .

The Ethiopian People 's Revolutionary Democratic Front ( EPRDF ) , with the help Assistance of the EPLF , defeated Conquering the People 's Democratic Republic of Ethiopia ( PDRE ) when it took Action control of the capital Addis Ababa a month later .