Defense officials say it will fill urgent gaps but Special Forces officers are skeptical.
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.
As the fight in Iraq drives fundamental changes to the military, it is also forcing a debate on how far those changes should go.
An Army general warns of strain on deployed troops.