To what extent does the economic partnership agreements signed between the European Union (EU) and some member countries of the (a) Southern African Development Community (SADC) and (b) Southern African Customs Union (SACU) (i) impact on regional integration in the sub-region, (ii) affect revenue sharing among SACU member countries and (iii) affect future diplomatic and economic ties between South Africa and SADC and/or SACU countries?