FOR SOLDIERS at the front, electromagnetic defences are as vital as air: invisible when present, and disastrous when not. In July Ukrainian troops in southern Donbas found this out the hard way.

The job of implementing a strategy to modernize how the Department of Defense uses electromagnetic spectrum (EMS) will now fall to the office of the Chief Information Officer, the DOD announced ...

The US Army conducted a joint-force, multinational training in Hawaii earlier this month. Troops focused on how to be "small and undetectable" in the electromagnetic spectrum, a commander said. The ...

THz waves, located in the far-infrared region of the electromagnetic spectrum, can be used to perform non-invasive imaging through opaque materials for security and quality control applications.