` The instruments of war do have a role to play in preserving the peace , '' he said . NEW : Protesters demonstrate outside venue ; Norway spent $ 60 million on security . `` Instruments of war do have a role to play in preserving the peace , '' Obama says . President Obama receives peace prize during ceremony in Oslo , Norway . The president is greeted by Norwegian Prime Minister Jens Stoltenberg at Akershus Castle in Oslo.
NEW : Protesters demonstrate outside venue ; Norway spent $ 60 million on security . `` Instruments of war do have a role to play in preserving the peace , '' Obama says . President Obama receives peace prize during ceremony in Oslo , Norway . The president is greeted by Norwegian Prime Minister Jens Stoltenberg at Akershus Castle in Oslo.