NGC and Japan Collaborate to Strengthen EW Capabilities to Meet Next-Gen Threats

April 27, 2026

Northrop Grumman (NYSE: NOC) joined Japan’s Ministry of Defense and embassy officials to explore opportunities to enhance and operationalize Japan’s electronic warfare (EW) systems and processes.

Building on previous discussions, Northrop Grumman is focused on strengthening Japan’s EW defense capabilities and emphasizing the value of reliable electronic warfare–an investment that starts before capabilities are used on the battlefield.

Addressing a Critical Security Inflection Point
In response to an increasingly complex geopolitical landscape and rising security threats in the region, Japan has amplified investments in its national defense infrastructure. Northrop Grumman is committed to supporting these efforts by delivering advanced EW solutions that strengthen and operationalize Japan’s defense posture.

Northrop Grumman provides comprehensive solutions that cover the full EW cycle–enabling Japan to detect, exploit, deceive and deny adversaries’ use of the electromagnetic spectrum while simultaneously protecting friendly operations. Prioritizing investment in sophisticated EW systems and integrated products is vital for Japan to maintain its role as a regional power and to safeguard the security interests of both Japan and its allies, including the U.S.

Proven Technologies Supporting Japan’s Evolving Needs
To counter increasingly sophisticated threats that are software-defined, wideband, distributed, and multispectral, Japan requires rapid software updates and adaptable hardware improvements. Northrop Grumman’s Combat Electromagnetic Environment Simulator (CEESIM) technology provides unmatched capability to simulate complex threat environments and supports continuous mission readiness.

CEESIM generates multiple simultaneous emitter scenarios linked to static and dynamic platforms, accurately replicating combat conditions to accelerate radio frequency (RF) system development and validation. Its proven track record on U.S. defense programs demonstrates CEESIM’s ability to deliver precise threat waveform representations.

Offering end-to-end lifecycle support with systems operating for 20+ years, CEESIM enhances EW development by providing Angle of Arrival (AOA) stimuli in System Integration Laboratories and serving as the foundational emitter engine for anechoic facilities and test ranges.

CEESIM has been fielded throughout the world since 1983, and has supported major EW programs, including Northrop Grumman’s ALQ-257 Integrated Viper Electronic Warfare Suite (IVEWS), ALQ-251 Radio Frequency Countermeasures and the APR-39E(V)2 Digital Radar Warning Receiver. These EW systems provide survivability against modern threats to protect aviators and ensure freedom of maneuver in contested environments. The IVEWS program has employed CEESIM throughout the development cycle, leading to successful and predictable results at flight test.

Training Japan’s warfighters is a vital part of building its electronic warfare (EW) capabilities. Northrop Grumman’s Joint Threat Emitter (JTE) offers an advanced, reactive training environment designed to prepare military personnel to accurately identify and effectively counter enemy missile and artillery threats. By incorporating JTE into Japan’s EW training programs, Northrop Grumman supports the development of highly skilled operators ready to meet evolving threats across the full EW cycle.

Source : Northrop Grumman Corporation