Ethiopia's Abiy Ahmed has won this year's Nobel Peace Prize. Here's why.

Photos: Nobel Peace Prize winners
The late Swedish industrialist Alfred Nobel left the bulk of his fortune to create the Nobel Prizes to honor work in five areas, including peace. In his 1895 will, he said one part was dedicated to that person "who shall have done the most or the best work for fraternity between nations, for the abolition or reduction of standing armies and for the holding and promotion of peace congresses." See the winners of the Nobel Peace Prize since it was first awarded in 1901.
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Photos: Nobel Peace Prize winners
Congolese gynaecologist Denis Mukwege and Nadia Murad, public advocate for the Yazidi community in Iraq and survivor of sexual enslavement by the Islamic State jihadists won the 2018 Nobel Peace Prize on October 5, 2018 for their work in fighting sexual violence in conflicts around the world.
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Photos: Nobel Peace Prize winners
The 2017 Nobel Peace Prize has been awarded to the International Campaign to Abolition Nuclear Weapons (ICAN), a coalition of non-governmental organizations in 100 countries dedicated to achieving a prohibition of nuclear weapons. Beatrice Fihn, the organization's chief executive, told reporters that the award of the prize to her organization was "hugely important" in the quest to abolish nuclear weapons.
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Photos: Nobel Peace Prize winners
The 2016 Nobel Peace Prize has been awarded to Colombian President Juan Manuel Santos for his efforts to end Colombia's long-running civil war.
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