Japan is stepping up efforts to strengthen its electronic warfare (EW) capabilities through cooperation with Northrop Grumman.
The partnership aims to build domestic EW capabilities while advancing data processing and threat simulation technologies, enabling Japan to effectively conduct the full EW cycle — including detection, disruption, deception, and protection of allied systems.
This move reflects growing security concerns in the Indo-Pacific, particularly tensions involving China and Japan in strategic regions such as Taiwan and the South China Sea.
To support these goals, Northrop Grumman has introduced two key solutions: the CEESIM (Combat Electromagnetic Environment Simulator) and the JTE (Joint Threat Emitter).
CEESIM is designed to replicate complex electromagnetic environments with simulated multi-directional threats, allowing engineers and operators to test and refine EW systems in realistic conditions. The simulator, operational since 1983, has supported advanced EW programs such as the ALQ-257 IVEWS, ALQ-251 countermeasure systems, and APR-39E(V)2 radar warning receivers.
The JTE system complements this by offering an adaptive training platform that enables military personnel to detect and respond to simulated missile and artillery threats effectively.
