Supporters of Ivory Coast's President Alassane Ouattara and his party, the Rally of the Houphouetists for Democracy and Peace (RHDP), attend a concert to celebrate his victory in the presidential election at Abidjan, Ivory Coast October 28, 2015. Ouattara, who won a landslide victory in a weekend poll, said on Wednesday that the first peaceful presidential election since a 2011 civil war will allow his country to move on after years of turmoil. Picture taken October 28, 2015. REUTERS/Thierry Gouegnon