WBRZ - Baton Rouge

President Obama accepted the Nobel Peace Prize Thursday in Oslo, Norway, acknowledging he hasn't done much compared to other Nobel laureates.

But he vowed to use the prize to "reach for the world that ought to be."

He accepted the prize just over a week after announcing plans to deploy 30,000 additional troops to Afghanistan.

Obama said wars are sometimes necessary and justifiable. He said people must accept "the hard truth" that violence cannot be eradicated and nations sometimes must wage war to protect their citizens from evil regimes or terrorist groups.

The president also said that lasting peace requires human rights and economic opportunity for individuals, and sanctions against regimes that violate international rules.