The line can be quite blurred between the two. Technically speaking, ECM and ECCM fall under the EW umbrella. However, in practical terms, when an aircraft is a dedicated ECM platform, like the EF-111, its capability, which includes a dedicated human operator to guide the EW suite, will generally be assigned a more electronically 'aggressive' posture, from mission planning to actual engagement. This platform can do both seek out potential enemy EM sources and preemptively engage them while providing EM cover for friendly forces. Fighters that carry EW pods usually employs them to cover one's self in attack and escape. Dedicate EWarriors are always much more preferable.
