(ANSA) - BELGRADE, 20 NOV - The European People's Party (EPP) Congress is taking place in Zagreb, Croatia, from 20 to 21 November. Donald Tusk is tipped to take charge of the EPP, the largest EU centre-right political group. Among the topics of discussion in Zagreb, climate, work, youth, enlargement of the EU to the Balkans, migrants and security. (ANSA).