Admirals and generals hope to connect with soldiers via their own Facebook pages and blogs. But will they tweet?
America needs a bigger military to stabilize weak or potentially threatening nations, some analysts argue.
Reviews under way, to be ready for the next president, are intended to accelerate a new strategy.
As officials consider sending more troops to Afghanistan, some worry about the lack of a larger plan.
Critics say the Bush administration is relying too heavily on the military.
As the fight in Iraq drives fundamental changes to the military, it is also forcing a debate on how far those changes should go.