Obama 'to lay out Afghanistan exit plan'
Support for the Afghan mission among the US public has been falling
President Barack Obama is expected to announce that US forces will begin handing over to Afghan security forces by mid-2011, as part of an exit plan.
In a much-anticipated speech to the nation within hours, he is also set to unveil a rapid deployment of 30,000 fresh troops over six months.
But Mr Obama will not give a pullout date; officials say that will depend on conditions on the ground at the time.
The administration's sense of urgency is palpable, says our correspondent.
In Tuesday evening's address at West Point military academy, Mr Obama is expected to make an accelerated troop surge the centrepiece of his new strategy for Afghanistan.
I won't be listening tonight because I'll be more unhappy than I am now watching him go against what he's wanted to do all along!