What is the correct format for employing CAS?

The 9-Liner is the correct format for employing Close Air Support (CAS) as it provides a structured method for relaying critical information effectively and efficiently to the aircrew. This format is designed to communicate essential details about the target, ensuring the safety of friendly forces while maximizing the effectiveness of the airstrike.

The 9-Liner consists of key elements that include the target location, friendlies' locations, target description, type of ordnance required, and additional information necessary for the engagement. Each line serves a specific purpose, helping to minimize confusion and mistakes in high-pressure situations where clarity is paramount. By following this format, ground forces can ensure that aircrews receive the necessary information to execute their mission while being aware of friendly positions.

Other formats, such as the 5-Line and 7-Line, do not encompass the full range of information needed for modern CAS operations, which have evolved to address more complex scenarios and threats. The 11-Line format is less commonly used and may incorporate additional information that is not always required for standard operations. The 9-Liner strikes the right balance between thoroughness and simplicity, making it the most appropriate choice for effective CAS employment.