Targeted operations by coalition and Iraqi forces, along with attitude shifts by local citizens against al Qaeda in Iraq, are taking a toll on insurgent efforts.
The Army's new plan for stationing its growing number of troops will affect 380,000 soldiers and family members and cost more than $66 billion in construction projects through 2013.
The Turkish government provided "ample notification" of plans to conduct air strikes against Kurdish rebel positions in northern Iraq, Pentagon Press Secretary Geoff Morrell told reporters.