The 3rd Infantry Division’s 1st Brigade Combat Team has spent 35 of the last 60 months in Iraq patrolling in full battle rattle, helping restore essential services and escorting supply convoys.

Now they’re training for the same mission — with a twist — at home.

Beginning Oct. 1 for 12 months, the 1st BCT will be under the day-to-day control of U.S. Army North, the Army service component of Northern Command, as an on-call federal response force for natural or manmade emergencies and disasters, including terrorist attacks.

It is not the first time an active-duty unit has been tapped to help at home. In August 2005, for example, when Hurricane Katrina unleashed hell in Mississippi and Louisiana, several active-duty units were pulled from various posts and mobilized to those areas.

But this new mission marks the first time an active unit has been given a dedicated assignment to NorthCom, a joint command established in 2002 to provide command and control for federal homeland defense efforts and coordinate defense support of civil authorities.

After 1st BCT finishes its dwell-time mission, expectations are that another, as yet unnamed, active-duty brigade will take over and that the mission will be a permanent one. ....