President Barack Obama says he understands that Americans are tiring of the war in Afghanistan, and he said he is examining whether the U.S. is pursuing the right strategy there.
Obama gave no hints about whether he plans to add more troops, as his commanding general in Afghanistan wants him to do. He says he has to make sure the core goal of defeating al-Qaida is served by any move he makes.
Defense Secretary Robert Gates plans to hold onto General Stanley McChrystal's request for more troops and resources until Obama is sure of what he wants to do next.
The president spoke in Pittsburgh, where the Group of 20 nations are meeting on the world economy.