What is Electronic Warfare (EW) and what are its primary objectives?

• A. Public relations on radio.
• B. Electronic Warfare; to deny, disrupt, or degrade an adversary's use of the electromagnetic spectrum while protecting friendly capabilities.
• C. Electronic weather monitoring.
• D. Cyber defense planning.

Answer: (B)

Electronic Warfare is about gaining an advantage by controlling the electromagnetic spectrum to help mission success. The primary objective is to deny, disrupt, or degrade an adversary’s use of the EMS while protecting our own friendly capabilities. In other words, EW seeks to disrupt the enemy’s communications, radar, and sensors, while ensuring our own systems remain reliable and reachable. This can involve jamming or deceiving enemy systems (electronic attack), shielding our own signals from interference (electronic protection), and detecting or characterizing enemy EMS activity to inform decisions (electronic support). The other options describe activities outside this EMS-focused goal—public relations on radio, weather monitoring, or cyber defense planning—so they don’t capture the spectrum-centered purpose of EW.