NATO allies have centralized their air operations into a small number of combined air operations centers, and that needs to change, a top official said. Staff Sgt. Elizabeth Davis/US Air Force The growing number of air threats means the West shouldn't rely on a few major headquarters. A large command post is a target — just as are aircraft on the ground and runways. A top NATO commander said that these command centers must be broken up and become mobile. The West's long-enjoyed luxury of havin