Which Joint Staff directorate is responsible for Communications Systems?

• A. J-6
• B. J-5
• C. J-4
• D. J-2

Answer: (A)

The key idea is who owns the joint force’s communications backbone. That belongs to the directorate responsible for Command, Control, Communications, and Computers—often described as C4. This office, the J-6, develops policy, doctrine, and coordination for all joint communications systems, ensures interoperability across the services and with partners, and oversees the integration and management of the networks the Joint Force relies on. In practice, J-6 handles the planning, engineering, and procurement of communications and IT infrastructure to support joint operations, while other directorates focus on areas like intelligence, operations, logistics, or plans. So the directorate in charge of Communications Systems is J-6.