What is Electromagnetic Attack primarily accomplished through?

Electromagnetic Attack is primarily accomplished through denial, disruption, and deception. This approach leverages the electromagnetic spectrum to interfere with or neutralize an adversary's use of electronic systems and communications. By denying the adversary's access to their electronic capabilities, disrupting their operations, or deceiving them regarding their situational awareness and operational capabilities, an effective electromagnetic attack can provide significant tactical advantages in a conflict.

The other choices do not capture the essence of what an Electromagnetic Attack entails. While detection and observation, communication via radio channels, and the protection of friendly assets are important aspects of overall operations, they do not specifically focus on the direct actions and strategies employed to execute an electromagnetic attack. The core goal of such attacks is to impair the opponent’s operational effectiveness by manipulating the electromagnetic environment, which is aptly described by the concepts of denial, disruption, and deception.