UKDJ has a couple of articles on this, written more for the UK perspective.
One of the articles has this comment:
"What the UK would use the radar for has not been stated. Britain has an acknowledged shortfall in ground-based air defence, with the Army fielding Sky Sabre in small numbers, and the Strategic Defence Review of 2025 committed to strengthening air and missile defence without settling on the sensors that would underpin it".
In the comments section of another of the
UKDJ articles there were references to MMPAR and GBMMR systems which would be more focused on land based applications. Time will tell if any of the CEA systems are selected and for what purpose.