Airborne DEFENSE is a type of military DEFENSE that involves the use of aircraft and missiles to protect against enemy attacks. The term 'AIRBORNE DEFENSE' can be broken down into two parts: 'AIRBORNE, ' which refers to the use of aircraft, and 'DEFENSE, ' which refers to the protection of a country or region from attack. One example of an AIRBORNE DEFENSE system is the MACE system, which stands for Missile Air Combat Element. This system is designed to provide air DEFENSE against enemy aircraft and missiles. It consists of a combination of radar, missiles, and other weapons systems.