Northrop Grumman is an aerospace and defense technology company. It operates through four segments: Aeronautics Systems, Defense Systems, Mission Systems, and Space Systems. The Aeronautics Systems segment offers strategic long-range strike aircraft, tactical fighter and air dominance aircraft, airborne battle management, command and control systems, etc. The Defense Systems segment designs and develops command and control battle management systems, precision strike weapons, gun systems, ammunition, and other products. The Mission Systems segment provides command, control, communications and computers, intelligence, surveillance and reconnaissance systems, sensors, electronic warfare systems, advanced communications and network systems, etc. The Space Systems segment offers satellites and spacecraft systems, subsystems, sensors and payloads, ground systems, missile defense systems and interceptors, and other solutions.