The U. S. President Barack Obama due to collecting the Nobel Peace Prize at a ceremony in the Norwegian capital, Oslo.
The prize was awarded to Mr Obama in October for his "extraordinary efforts to strengthen international diplomacy and cooperation between the communities".
The ceremony comes a day after Mr. Obama announced he was sending 30,000 additional U.S. troops to the war in Afghanistan.
U.S. officials that he was aware of "assimilation" and referring to the U.S. wars in his acceptance speech.
There was mixed reaction when Mr. Obama was nominated as the award winner for 2009.
Many said it was inappropriate that he might go to the Commander-in-chief country involved in wars in Iraq and Afghanistan.
White House spokesman Robert Gibbs said Mr. Obama understands "and again will also recognize that it belongs in the same debate that [Nelson] Mandela and Mother Theresa", the former Nobel Peace Prize laureate.
He said that Mr Obama would use his speech to take to "address directly the idea that many wondered - is the juxtaposition of time on the Nobel Peace Prize, and a commitment to the troops be greater. "
A senior official told Reuters that Mr. Obama "sees peace prize with a long tradition of recognizing the achievements of people who worked to spread peace in different ways."
Not "He believes that some of the reasons it won this award which was directly under it, is the fact that worldwide hunger for positive U.S. leadership and this is confirming it," said the unnamed officer.
'Vision to achieve
Security is high in Oslo for the event and anti-war protesters gathered outside the hotel where the ceremony takes place.
"We objected against him because he is going to get the price and do not think a man of peace," one demonstrator, Anna Carraro, said the AFP news agency.
The Nobel Prizes for chemistry, literature, medicine, physics and economics to present as well, with each winner receiving a diploma, medal and the 10m kronor ($ 1.4m: £ 865,000), in part to make joint winners.
Coinciding with the Nobel ceremony, Indonesia has a disclosure by statue of Mr Obama as a young boy.
It will be in the park in the capital, Jakarta, close to where the President lived between 1967 and 1971 and described as aged 10 dressed in shorts and a butterfly on a finger.
Central Jakarta Mayor Sylviana Murni said that the statue was intended to encourage Indonesian children.
"The message by the young Obama ruled that each and every child from any background to achieve their dreams if they are fighting for the ongoing," the agency under the auspices of the Press news mentioned as saying.
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