Colombian President Juan Manuel Santos (L front) shakes hands with Commander in Chief of the Revolutionary Armed Forces of Colombia (FARC) Timoleon Jimenez (R front) during the signing ceremony of the final peace agreement between the Colombian government and the FARC, in Cartagena, Colombia, Sept. 26, 2016. Juan Manuel Santos and Timoleon Jimenez signed a historic peace deal Monday afternoon in Cartagena, ending a 52-year conflict. (Xinhua/Jhon Paz)