Which definition describes the Electronic Warfare Support (ES) function?

The definition describing the Electronic Warfare Support (ES) function is accurately represented by the choice that states it involves actions tasked by an operational commander to intercept and identify radiated electromagnetic energy. This function is critical within the broader scope of electronic warfare, as it focuses on collecting information about the enemy’s use of electromagnetic spectrum, which includes radar signals, communications, and other electronic transmissions.

By intercepting and identifying these signals, military forces can gain vital intelligence about enemy capabilities and intentions, allowing for informed tactical and strategic decisions. This process of gathering information forms the foundation for other electronic warfare operations, such as electronic attack (EA) and electronic protection (EP).

The other options describe different aspects of electronic warfare, such as protecting friendly forces or actively disrupting enemy communications, but these activities fall under different categories of electronic warfare. Therefore, the focus on interception and identification of radiated electromagnetic energy distinctly identifies the Electronic Warfare Support function.