The U.S. Defense Department is considering adding an extra “C” to the “Joint All-Domain Command and Control” acronym (JADC2), making it “CJADC2.” This new prefix stands for “combined” and emphasizes the U.S. military’s focus on collaborating with allied forces. The term, reflecting the ongoing collaboration with international partners, is increasingly used by Pentagon officials. The initiative underlines the commitment to sharing data and ensuring interoperability when operating jointly with allies.
  

Key Points: 

1. The “C” in “CJADC2” represents “combined,” highlighting the U.S.’s ability to combat alongside forces from friendly nations.
2. The term underscores the Defense Department’s commitment to designing capabilities that ensure information and data sharing with allies.
3. The Chief Digital and AI office is leading the Global Information Dominance Experiments, aiming to consolidate findings from various sources into a consistent format.
4. Prominent military figures, including Navy Adm. Chris Grady and Air Force Lt. Gen. Mary O’Brien, have emphasized the significance of CJADC2 in recent discussions.
5. The Defense Department’s 2024 budget has allocated $1.4 billion to this connectivity campaign, aiming to enhance information flow across different operational domains.

Source: https://www.c4isrnet.com/battlefield-tech/c2-comms/2023/08/31/why-jadc2-needs-yet-another-c-according-to-pentagon-officials/