German Chancellor Angela Merkel, is applauded by Turkey's President Recep Tayyip Erdogan, following her speech during a roundtable meeting on "Political Leadership to Prevent and End Conflicts" at the World Humanitarian Summit in Istanbul, Monday, May 23, 2016. World leaders and representatives of humanitarian organisations from across the globe converge in Istanbul on May 23-24, 2016 for the first World Humanitarian Summit, focused on how to reform a system many judge broken. (Ozan Kose/Pool Photo via AP), APTOPIX