Leader of Colombian left - wing party Union Patriotica ( UP ) Aida AvellaA picture made available on 18 September 2015 of the leader of the Colombian left - wing party Union Patriotica ( UP ) , Aida Avella , during an interview in Bogota , Colombia , 14 September 2015 . Members of the UP , who spent several years in the exile , have returned to the country to participate in the upcoming 25 October general elections . Aproximately 4 , 000 members of the party were killed in Colombia during the decade of the 1980 in which is considered one of the biggest politic genocides of the American history . EPA / LEONARDO MUNOZ ▶ [ 현장 영상 ] ' 아이 들 을 던진 이유 '… 중국 유치원 화재 ▶ [ 오늘 의 핫 화보 ] ' 전쟁 가능 法 ' 日 안보 법안 강행 … 아베 정권 ' 비판 고조 ' < 저작권자 ( c ) 연합뉴스 , 무단 전재 - 재 배포 금지 >