An expeditionary squadron of B-1B bombers, including a contingency of 400 airmen, recently finished a 6 month deployment in Afghanistan
Over the course of the 6-plus month deployment, the squadron flew more than 770 combat sorties, encompassing over 9,500 hours, to provide 24 hours of coverage every day.
They also responded to more than 500 troops-in-contact situations, with the enemy as close as 300 meters from friendly forces, and another 700 priority air requests, delivering more than 400 weapons on target.
Basically a bomber was airborne and able to provide support to ground troops, 24 hours a day, 7 days a week...for 6 months.
Amazing feat, however at a cost of $35,000 / hour; there are cheaper means in which to provide round the clock close air support to our boys (and girls) on the ground.
Countering this, the B-1B can carry a large array of ordnance compared to unmanned aerial platforms. So I suppose it balances out on the cost effectiveness side, at least in part.
Anyway, job well done by these airmen.