Official Signing Army Chief of Staff Gen. James C. McConville, right, and Air Force Chief of Staff Gen. Charles Q. Brown Jr. sign a two-year collaboration agreement in the development of Combined Joint All-Domain Command and Control, or CJADC2, which will impact units in both branches, Sept. 29, 2020. SHARE: Download: Full Size (0.95 MB) Credit: Army VIRIN: 200929-A-ZZ999-1001.JPG Photo Gallery