For those saying that this is a minimal re-enforcement/surge you need to try looking at the actual numbers.

This is more troops than were sent to the “surge” in Iraq (20,000) where we already had almost 130,000 troops on the ground. Since we only have about 68,000 troops on the ground in Afghanistan this is roughly a 50% increase in our commitment of troops. As a percentage increase this is one hell of a re-commitment to the war, now lets see if it can work.