Defense in the Electromagnetic Domain

Electromagnetic spectrum is a general term for radio waves, infrared rays, visible light, X-rays, etc. In everyday life, radio waves are particularly being used for various purposes ranging from television and mobile communications to geolocation information through global positioning systems.

Electromagnetic spectrum has also been being used for command/communication, and warning/surveillance in the field of defense. With the development of the technology, its use has expanded in range and purpose, and it is now recognized as a major operational domain situated on the frontline of the offense-defense dynamic in today’s warfare. Therefore, together with space and cyberspace, electromagnetic spectrum is regarded as an essential domain in the FY2019 National Defense Program Guidelines (NDPG).

In FY2020, the MOD/JSDF has been building and reinforcing the following capabilities to gain superiority in the electromagnetic spectrum.

Development of Standoff Electronic Warfare Aircraft

To support JSDF air operations by conducting effective jamming of an adversary’s communication.

Research on Anti-air Electronic Warfare Device 1

To neutralize the radar of invading aircraft by emitting radio waves from the ground.

Procurement of three F-35A fighter aircraft 2

To secure air superiority by procuring F-35A fighter aircraft with superior electronic protection capabilities.

Procurement of six F-35B fighter aircraft 3

To improve flexibility of fighter operation by procuring F-35Bs with superior electronic protection capabilities.

Improvement of F-15 fighter aircraft’s capabilities 4

To improve electronic warfare capabilities by upgrading programs.

Establishment of an Electronic Warfare Unit

To strengthen operational capabilities in the electromagnetic domain.

Through these efforts, the MOD/JSDF will continue to promote the development of truly effective defensive capabilities.

Electronic Warfare (image)