Northrop Grumman Updates Customers on CEESIM System Developments at Annual Users Conference

LONDON, September 16, 2010 - Northrop Grumman Corporation (NYSE: NOC) recently held its fourth annual
conference for users of its Combat Electromagnetic Environment Simulator
(CEESIM) systems. The conference is aimed at keeping users updated on system
developments while providing a forum to identify potential opportunities for
improving system performance and customer service.

A photo accompanying this release is available at
media.globenewswire.com/noc/

"The continued and growing community of participants at our fourth annual
CEESIM Users Conference confirms the on-going relevance and importance
advanced simulation plays in electronic warfare," said John Stanfill,
president, Northrop Grumman Amherst Systems. "Northrop Grumman is proud to be
a trusted partner to so many organizations in this vital defense and security
segment."

There were more than 40 military and civilian personnel from the United
Kingdom, Germany, Italy, Turkey and New Zealand user communities in
attendance at the conference, which was held in Peterborough, U.K. They were
joined by a team of specialists in all aspects of CEESIM engineering and
support from Northrop Grumman.

The Northrop Grumman CEESIM system is an industry-leading, advanced
technology simulator, which generates complex dynamic electromagnetic
environments to simulate true-to-war conditions, enabling military
specialists to test and evaluate the performance of advanced electronic
warfare systems such as radar warning receivers and electronic
countermeasures and signals intelligence systems.

The principal U.K. users of the CEESIM system are the Air Warfare Centre,
BAE Systems and Selex Sensors and Airborne Systems. International users in
attendance also included EADS Deutschland GmbH, Germany; Elettronica S.p.A.,
Italy; Aselsan, Turkey; MiKES (Microwave Electronic Systems), Turkey;and the
New Zealand Defence Force.

Northrop Grumman's CEESIM is currently used to support a variety of
international aircraft including the Typhoon, Tornado, MRA-4 Nimrod,
EuroHawk, F-35 and A400M.

"The company has been selected to supply several CEESIM systems and
expects future expansion on additional platforms," said Stanfill.

In addition to CEESIM, attendees were briefed on the Signal Measurement
System, Synchronizer Controller System, the Realtime IR/EO Scene Simulator
and the CEESIM-based Joint Threat Emitter (JTE), the latter of which is a
ground-based, electronic warfare system selected by the U.S. Air Force for
use on all their electronic warfare training ranges. JTE is able to use any
threat data developed on CEESIM systems. Along with product briefings, an
advanced training/demonstration session was held on the company's Environment
Generation and Analysis software.

Northrop Grumman Amherst Systems produces deployable radio frequency (RF)
and infrared (IR) simulators for use on test and training ranges at military
installations worldwide. The company's RF and IR simulators test the world's
most advanced electronic warfare warning systems, infrared/ultraviolet
missile approach sensors and radar-warning receivers and jamming systems.
These simulators are in use internationally, not only in the U.K., Germany,
Turkey, Italy and New Zealand, but also in Australia, Canada, Taiwan, Japan,
Singapore, Korea, Saudi Arabia, UAE, Israel, Sweden, Finland, Norway, France
and other NATO countries.

Northrop Grumman Corporation is a leading global security company whose
120,000 employees provide innovative systems, products, and solutions in
aerospace, electronics, information systems, shipbuilding and technical
services to government and commercial customers worldwide. Please visit
www.northropgrumman.com for more information.

Ken Beedle (London), +44-207-747-1910, ken.beedle at euro.ngc.com, or Ellen Hamilton (Rolling Meadows), +1-224-625-4693, ellen.hamilton at ngc.com, both of Northrop Grumman Corporation