What division of EW involves the use of electromagnetic energy or directed energy to degrade enemy combat capability?

The division of Electronic Warfare that focuses on using electromagnetic energy or directed energy to interfere with or degrade the enemy’s capability is indeed Electronic Attack (EA). This branch specifically targets the enemy’s systems and operations, aiming to disrupt, deny, or inhibit their effectiveness through various means, including jamming, spoofing, or using directed energy weapons.

The primary goal of Electronic Attack is to degrade the enemy's ability to perform missions and operations by negatively affecting their electronic systems, communication channels, or overall combat effectiveness. This can involve tactics that directly attack their radar and communication systems, thereby providing a tactical advantage.

In contrast, other divisions serve different roles; for example, Electronic Protection (EP) is focused on safeguarding friendly use of the electromagnetic spectrum, while Electronic Warfare Support (ES) involves gathering intelligence and situational awareness through monitoring enemy electromagnetic activities. Electronic Warfare (EW) as a whole is the umbrella term that encompasses all of these aspects, but Electronic Attack specifically addresses the offensive component through the use of electromagnetic energy.