The 10th Mountain Division's headquarters unit will deploy to Afghanistan this winter, the Department of Defense announced Tuesday evening.

630 people will be going, according to a news release. The deployment of the headquarters is in addition to the deployment of the 3rd Brigade Combat Team, which is expected to be in Afghanistan for nine months.

In all, the Pentagon announced the deployment of six units Tuesday evening, including:

- 2nd Brigade Combat Team, 101st Airborne Division, Fort Campbell, Ky.

- 4th Infantry Brigade Combat Team, 4th Infantry Division, Fort Carson, Colo.

- 3rd Armored Brigade Combat Team, 1st Armored Division, Fort Bliss, Texas.

- 159th Combat Aviation Brigade, 101st Airborne Division, Fort Campbell, Ky.

Division Headquarters:

- 10th Mountain Division Headquarters, Fort Drum, N.Y.

Corps Headquarters:

- XVIII Airborne Corps Headquarters, Fort Bragg, N.C.