UK RAF 90th SU members notify allied partners of PACE communication changes during the 2025 XCOMM Roundup at Robins Air Force Base.
ROBINS AIR FORCE BASE, Ga. – Air Specialist (Class 1) Lewis Farmer, 90th Signals Unit, RAF Leeming, North Yorkshire, notifies allied partners of PACE-Primary, Alternate, Contingency and Emergency-communication changes through the NATO-developed chat system, JCHAT as Air Specialist (Class 1) Sebastian Colbron, 90 SU, documents injects during the 2025 XCOMM Roundup at Robins Air Force Base, Georgia, April 29, 2025. During the exercise, the PACE model offered four layers of redundancy to keep communications up and flowing. (U.S. Air Force photo by Jerry Foltz)