ELECTRONIC  WARFARE

Electronic warfare (EW) refers to any action involving the use of the electromagnetic spectrum or directed energy to control the spectrum, attack an enemy, or impede enemy assaults via the spectrum.
The purpose of electronic warfare is to deny the opponent the advantage of, and ensure friendly unimpeded access to, the EM spectrum. EW can be applied from air, sea, land, and space by manned and unmanned systems, and can target communication, radar, or other services. EW includes three major subdivisions: Electronic Attack (EA), Electronic Protection (EP), and Electronic warfare Support (ES).

Electronic warfare applications

Electronic warfare is any military action involving the use of the EM spectrum to include directed energy (DE) to control the EM spectrum or to attack an enemy.
This is not limited to radio or radar frequencies but includes IR, visible, ultraviolet, and other less used portions of the EM spectrum.
This includes self-protection, standoff, and escort jamming, and anti-radiation attacks.
EW is a specialized tool that enhances many air and space functions at multiple levels of conflict.
EW can be applied from air, sea, land, and space by manned and unmanned systems.
EW is employed to support military operations involving various levels of detection, denial, deception, disruption, degradation, protection, and destruction.
EM compatibility and deception; EM hardening, interference, intrusion, and jamming; electronic masking, probing, reconnaissance, and intelligence; electronics security;

Electronic warfare includes three major subdivisions:

Electronic attack (EA),

Electronic protection (EP), and

Electronic warfare support (ES).

Electronic attack involves the use of EM energy, directed energy, or anti-radiation weapons to attack personnel, facilities, or equipment with the intent of degrading, neutralizing, or destroying enemy combat capability.
Electronic protection involves actions taken to protect personnel, facilities, and equipment from any effects of friendly or enemy use of the electromagnetic spectrum that degrade, neutralize, or destroy friendly combat capability.
Electronic warfare support is the subdivision of EW involving actions tasked by, or under direct control of, an operational commander to search for, intercept, identify, and locate or localize sources of intentional and unintentional radiated EM energy for the purpose of immediate threat recognition, targeting, planning, and conduct of future operations.

If is a frequency, if the enemy is radiating something, it is jammed.

During peace time, search for enemy’s frequencies continue.