The award ceremony for the Nobel Peace Prize will be held on December 10.
This year it will be handed to the International Campaign to Abolish Nuclear Weapons, or ICAN, a group dedicated to realising a world without nuclear weapons.
Al Jazeera is reviewing the nuclear status of countries in the days leading up to the ceremony in Oslo.
The United States is the only country to have used a nuclear bomb in war. In 1945, it dropped nuclear weapons on Hiroshima and Nagasaki in Japan.
But history's first victims of a nuclear bomb were US citizens caught in the radiation field of a test bomb in New Mexico.
Al Jazeera's Heidi Zhou-Castro reports.