I want to know the answer to the following question:
What does the USAF use the E-4B aircraft for?
All the background I'm provided with is that "The roles of the aircraft vary greatly among the different variants to include Electronic Warfare/Jamming (EC-130H), Psychological Operations/Communications (EC-130J), Airborne Early Warning and Control (E-3), Airborne Command Post (E-4B), ground targeting radar (E-8C), range control (E-9A), and communications relay (E-11A)". Is that enough to answer the question?
Answer: yes