The 2016 Nobel Peace Prize was awarded to the President of which country for his efforts to end a long civil war?

Juan Manuel Santos, then President of Colombia, received the 2016 Nobel Peace Prize for his determined efforts to bring the country's more than fifty-year civil war with the FARC guerrillas to an end. Syria's civil war was ongoing, Sri Lanka's civil war ended in 2009, and Myanmar's leader Aung San Suu Kyi had earlier received the prize in 1991, so these options are wrong.