HAVANA, June 23, 2016 (Xinhua) -- Colombian President Juan Manuel Santos (2nd-L) shakes hands with Timoleon Jimenez (2nd-R), the top leader of the Revolutionary Armed Forces of Colombia (FARC) in the signing ceremony of a historic ceasefire agreement between the Colombian government and the FARC, in Havana, capital of Cuba, on June 23, 2016. (Xinhua/COLPRENSA)