Representatives of the Revolutionary Armed Forces of Colombia (FARC) and the National Liberation Army (ELN) attend a joint press conference in Havana, Cuba, on May 11, 2017. Colombia's top guerrilla groups on Thursday called for an end to political violence in the South American nation as well as the complete implementation of a peace process that will end over 50 years of armed conflict. (Xinhua/Joaquin Hernandez)
