Philosophies of Unity are behind time to promote regional Integration and Continental Unity in Africa. Despite the candid philosophical principles of the African Union and the firmness of its resolutions, it is regrettable to note that none of these initiatives has managed to establish the desired uninterrupted peace between states or citizens and neither in regional or continental integration. Instead of promoting the spirit of unity and peace, African leaders are victims of tribal inclinations and imperialist ambitions who continue to sow division and terror. Plans to redraw the geographic map of Africa are no longer taboo and are used to justify certain civil wars. This problem has negatively impacted African populations and their socio-economic development. Hundreds of thousands of people have been slaughtered in several conflicts and civil wars. Millions are displaced, economic infrastructure has been destroyed, and regional integration processes interrupted. A possible cause of this problem is the forgetfulness of the spirit of Bandung and the non-consideration of Ubuntu as a source of political inspiration. This paper aims at revisiting the Spirit of Bandung in the light of the African political philosophy of Ubuntu. We are convinced that the solution to the problem of unity and peace in Africa cannot do without the universal principles of cosmopolitanism advocated by the Kantian criticism.