The two combat brigades that would have replaced them will go to Afghanistan instead.
US commanders there may find it hard to quickly reduce the use of almost 150,000 contractors.
Though the Pentagon budget is slated to rise, he confronts an urgent need to force greater discipline on military spending.
The president listens to tactical commanders in extending it to 19 months.
The churches have applied to help the men – who cannot be safely returned home – resettle as refugees in Canada.
President Obama must decide whether to embrace or change Bush's detention policies.
With Guantánamo set to close, more attention is falling on the US military facility in Afghanistan and those in custody there.
Retention rates may be hurt by the GI Bill's expanded school benefits as well as potential budget cuts.
But Pentagon officials say Kyrgyzstan's move to close a supply route won't impede operations in Afghanistan.
Two controversial programs will step up monitoring of ships and port workers.
Pentagon's generous budget is not likely to see cuts soon, even if Iraq war starts to wind down.
The waiver program allows overweight enlistees to get in shape after they sign up.
Camp COPE has helped more than 1,000 children in places ranging from Texas to Florida.
Keeping the Defense secretary allows Obama's team to move quickly on a foreign-policy challenges.
A new interactive video encourages soldiers to seek help to cope with the stress of war.
The Joint Chiefs chairman may come closer to the views of the new president.
A bad economy and better news from Iraq may be helping to increase interest in and support for enlistment.
The alleged incursions into Syria, and previously into Pakistan, could be risky.
A new command and headquarters are part of the plan to refocus on its nuclear responsibilities.
America needs a bigger military to stabilize weak or potentially threatening nations, some analysts argue.