promote sustainable development at the economic, social and cultural levels as well as the integration of African economies; (k) promote co-operation in all fields of human raise the living standards of African peoples; (i) coordinate and harmonize the policies between the existing and future Regional Economic Communities for the gradual attainment of the objectives of the Union; advance the research in technology; (n) work with activity to development of the continent by promoting all fields, in particular in science and relevant international eradication of preventable diseases good health on the continent. and partners the in promotion the of Article 4 Principles The Union principles: shall function in accordance with the following among Member (a) sovereign equality and States of the Union; (b) respect of borders’ independence; (c) participation of the African peoples in the activities of the Union; (a) establishment of a common Continent; interdependence existing on achievement of defence policy for the African