Yes we can.
But no we won't...
The request reportedly includes different options for adding troops for combat, training and support, with one option totaling about 40,000. The ability of the Army and Marine Corps to meet the request would depend on the type and number of troops McChrystal asked for, and when he wants them. A significant troop increase in Afghanistan early next year - similar to the 2007 increase in Iraq - would be difficult to sustain given the current size of the Army and Marine Corps and ongoing troop demands in Iraq, officials said.