Close Air Support
From Baloogan Campaign Wiki
Close Air Support
CAS operations require detailed integration with the fire and movement of friendly forces for fratricide avoidance and targeting guidance by third parties.
It provides ground or amphibious forces with aerial firepower in offensive and defensive operations, by day and night, to destroy, suppress, neutralize, disrupt, fix or delay enemy forces in close proximity to friendly ground forces.
Reference: NATO AJP 3.3, November 2009