Army operate an extensive fleet of fixed wing aircraft, just not combat aircraft although many have multiple roles. UAV's are pilotless and if they don't intrude on AirForce battlespace (altitude,etc..) the AF boys don't mind but it is an issue since the AF practically hates to fly CAS mission or do surveillance/reccy type sorties. Only AF pilots that can be counted on are the A-10 jockeys who get in the mud to help the ground trooper.