OSLO (Reuters) -- The effect of giving the 2009 Nobel Peace Prize to U.S. President Barack Obama fell short of the nominating committee's hopes, and several awards in the past 25 years were even more questionable, the committee's former secretary says in a new book.
Geir Lundestad, lifting a veil on the secretive five-member panel, also reveals that former German chancellor Helmut Kohl, late Czech president Vaclav Havel and several rock stars were among those who were considered for the award but never won.
Lundestad writes in "Secretary of Peace" that the prize to Obama was the most controversial during his time as director of the Norwegian Nobel Institute from 1990-2015. He attended committee meetings but had no vote.
"Even many of Obama's supporters thought the prize was a mistake," Lundestad wrote, adding that many Americans viewed the award as making Obama a spokesman for international peacemaking values rather than their own interests.
"In that sense the committee did not achieve what it hoped for," he wrote, noting Obama himself rarely mentioned the prize.
Obama - 2009 Nobel Peace Prize
Obama's Nobel Prize fell short of hopes: committee insider
File - President Barack Obama walks down the Colonnade from the Oval Office of the White House in Washington, in this Oct. 5, 2009 file photo, to make remarks on health care reform in the Rose Garden. The Norwegian Nobel Committee said Friday Oct. 9, 2009 U.S. President Barack Obama has won the 2009 Nobel Peace Prize for "his extraordinary efforts to strengthen international diplomacy and cooperation between peoples."(AP Photo/Gerald Herbert, File)
Chairperson of the Norwegian Nobel Committee, Thorbjorn Jagland, with pictures of Nobel Peace Prize laureate 2009 Barack Obama at The Norwegian Nobel Institute in Oslo Friday, Oct 9, 2009. (AP Photo/Torbjorn Gronning)
US President Barack Obama works in the Oval office in White House in Washington, DC, on October 9, 2009. Obama won the Nobel Peace Prize just nine months into his term in office, prompting world leaders to urge him to use the accolade to step up efforts for global peace. AFP PHOTO/Jewel SAMAD (Photo credit should read JEWEL SAMAD/AFP/Getty Images)
President Barack Obama speaks about winning the 2009 Nobel Peace Prize, Friday, Oct. 9, 2009, in the Rose Garden of the White House in Washington. (AP Photo/Charles Dharapak)
Archbishop Desmond Tutu reacts during a press conference held to congratulate U.S. President Barack Obama in Cape Town, South Africa, Friday, Oct. 9, 2009. President Barack Obama won the 2009 Nobel Peace Prize on Friday in a stunning decision designed to encourage his initiatives to reduce nuclear arms, ease tensions with the Muslim world and stress diplomacy and cooperation rather than unilateralism. (AP Photo/Schalk van Zuydam)
A Kenyan reads the local daily newspaper showing the headlines in Nairobi Saturday, Oct. 10, 2009 following the announcement Friday awarding US President Obama the Nobel peace prize for 2009. The announcement was met with joy in Kenya, which has a special regard for Obama, the son of a Kenyan economist and an American anthropologist. (AP Photo/Khalil Senosi)
Nobel Peace Prize laureate, US President Barack Obama (C) and First Lady Michelle Obama arrive for the Nobel Peace prize award ceremony at the City Hall in Oslo on December 10, 2009. The president faces a tricky task of reconciling the revered honor with his decision just last week to send 30,000 troops to escalate the war in Afghanistan, a move which tripled the US force there since he took office. AFP PHOTO / OLIVIER MORIN (Photo credit should read OLIVIER MORIN/AFP/Getty Images)
President and Nobel Peace Prize laureate Barack Obama poses with his medal and diploma at the Nobel Peace Prize ceremony at City Hall in Oslo, Thursday, Dec. 10, 2009. (AP Photo/Odd Andersen)
President and Nobel Peace Prize laureate Barack Obama waves after delivering his Nobel lecture at the Nobel Peace Prize ceremony at City Hall in Oslo, Thursday, Dec. 10, 2009. Next to Obama is Nobel Committee member Kaci Kullmann Five.(AP Photo/John McConnico)
President and Nobel Peace Prize laureate Barack Obama poses with his medal and diploma alongside Nobel committee chairman Thorbjorn Jagland at the Nobel Peace Prize ceremony at City Hall in Oslo, Thursday, Dec. 10, 2009. (AP Photo/John McConnico)
A couple display placards congratulating US President Barack Obama on winning Nobel Peace Prize outside the White House in Washington, DC, on October 9, 2009. Awarding Obama the Nobel Peace Prize so soon after taking office is a 'controversial' decision aimed at encouraging him to achieve his goals, analysts said. AFP PHOTO/Jewel SAMAD (Photo credit should read JEWEL SAMAD/AFP/Getty Images)
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The award, made by the committee in particular recognition of Obama's vision of ridding the world of nuclear weapons, was widely criticized in the United States as premature. It came just nine months after he took office.
Lundestad, a professor of American history, said he had strong doubts before the award but denied Norwegian media reports that he regretted it. The five-member committee was unanimous in awarding the prize.
In the past 25 years "there were no obvious mistakes," Lundestad said. But two or three were questionable, such as the 2004 award to late Kenyan environmental activist Wangari Maathai, he added.
Maathai was the first to get an award for environmental protection, with a campaign to plant millions of trees across Africa, but "it's far from given that she was the best candidate," he wrote.
He said former Canadian Foreign Minister Lloyd Axworthy should perhaps have shared the 1997 prize awarded to the International Campaign to Ban Landmines and its coordinator, Jody Williams. It was Canada that launched the process that led to a treaty to eliminate landmines, signed in Ottawa that year.
Lundestad noted that campaigning rock stars such as Bono, Bob Geldof and Sting had all enjoyed a high profile in international politics. "In the 2000s several such names were in fact considered, but the conclusion was that these artists were better suited to receiving Grammy prizes than Nobel Prizes," he wrote.
He said he wanted to push for greater openness around the prize, which has a 50-year secrecy rule.
"We plan to read the book first before making any comment," said Annika Pontikis, spokeswoman of the Nobel Foundation in Stockholm which oversees prizes from Chemistry to Literature.