STOCKHOLM — Colombian President Juan Manuel Santos on Saturday accepted the Nobel Peace Prize, saying it helped his country achieve the ‘‘impossible dream’’ of ending a half-century-long civil war.
Santos received his Nobel diploma and gold medal at a ceremony in Oslo for his efforts to end a conflict that has killed 220,000 people and displaced 8 million.
‘‘Ladies and gentlemen, there is one less war in the world, and it is the war in Colombia,’’ the 65-year-old head of state said, referring to the historic peace deal this year with leftist rebels from the Revolutionary Armed Forces of Colombia, or FARC.
Santos used his acceptance speech to celebrate the end of the longest-running conflict in the Americas, pay tribute to its victims, and call for a strategy shift in another, related war — on drug trafficking worldwide.
The president urged officials to ‘‘rethink’’ the war on drugs, adding that ‘‘Colombia has been the country that has paid the highest cost in deaths and sacrifices.’’
Santos has argued that the decades-old, US-promoted war on drugs has produced enormous violence and environmental damage in nations that supply cocaine, and should be supplanted by a global focus on easing laws prohibiting consumption of illegal narcotics.
‘‘It makes no sense to imprison a peasant who grows marijuana, when nowadays, for example, its cultivation and use are legal in eight states of the United States,’’ he said.
The peace prize was conferred in Oslo because the recipient is picked by the Norwegian Nobel Committee. The other Nobel Prizes were presented at a separate ceremony in Stockholm to the laureates in medicine, chemistry, physics, and economics.
Musician Bob Dylan, who won the prize for literature, wasn’t at the Stockholm ceremony Saturday — he declined the invitation citing other commitments. The crowd still gave Dylan a standing ovation after an academy member praised his work in a speech.
Santos’ speech also made a reference to Dylan by citing the lyrics of one of his most famous songs, ‘‘Blowin’ in the Wind.’’
Just a few years ago, imagining the end of the bloodshed in Colombia ‘‘seemed an impossible dream, and for good reason,’’ Santos said, noting that very few Colombians could even remember their country at peace.
The initial peace deal was narrowly rejected by Colombian voters in a shocking referendum result just days before the Nobel Peace Prize announcement in October.
Many believed that ruled out Santos from winning this year’s prize, but the Norwegian Nobel Committee ‘‘saw things differently,’’ deputy chairwoman Berit Reiss-Andersen said.
‘‘The peace process was in danger of collapsing and needed all the international support it could get,’’ she said in her presentation speech. A revised deal was approved by Colombia’s Congress last week.
Several victims of the conflict attended the prize ceremony, including Ingrid Betancourt, who was held hostage by FARC for six years, and Leyner Palacios, who lost 32 relatives including his parents and three brothers in a FARC attack.
Colombians have reacted to Santos’ prize with muted emotion amid deep divisions over the peace deal. The vast majority didn’t vote in October’s referendum. For many Colombians in big cities Santos’ focus on ending a conflict that had been winding down for years has diverted attention from pressing economic concerns.
