Research Paper (undergraduate) from the year 2015 in the subject Politics - Basics and General, , language: English, abstract: Long struggle of nation, nationalities and peoples of Ethiopia against the military junta of Derg regime brought the coming power of Ethiopian People Revolutionary Democratic Front. The 1991 was a historic period in the history of the country that transferred from unitary system of government to the Federal system of government. The introduction of defacto-federalism in the transitional charter provides the right to self-determination up to and including secession as well as led the foundation for vertical, horizontal and normative relationships besides cooperation. The promulgation of 1995 constitution gives a ground base of dejure federalism by providing powers to nations, nationalities and peoples as ultimate power holders.in this constitution 9 regional states are identified with their own sovereignty and administrative arrangements and they shall establish their own smallest administrative units as enshrined in Article 50 of FDRE constitution. The other issue that we discussed in this constitution is that the absence of formal intergovernmental relations/cooperation among federal government and regional states vertically, between regional states and within local governments horizontally. The absence of formal vertical and horizontal relationships does not mean that no relation at all. Relations through sectorial base, party channels and through institutions are held informally. Intergovernmental relations are one of the pillars for most federal states and unitary governments to facilitate their socio-economic and political as well as cultural developments