terrain properties and the VSHORAD kill zones

recognized air picture for the region and the approach directions for the protected area

enemy MAA flight trajectory, enemy reconnaissance of the protected area

the air threat to ground-based forces will tend to be a function of the nature of the ground-based asset itself

the vulnerability, survivability, numbers, technological sophistication, level of training, culture

the geometry of the battlefield to allow more survivable deployments, becomes very attractive

weapons, sensors and C3I

requirements, capabilities and implementation

operational security, survivability and flexibility