Can air defense system be used for anti-missile? Can the anti-missile system be used for air defense?

The anti-missile system can be used for air defense. Air defense systems can also be used for anti-missile. But the effect is limited.

The focus of air defense system is to prevent and counter air strikes. Among them, anti-missile is a very important part, because missile attack is a conventional means of modern warfare, and anti-missile has become an effective method to prevent missile attack.

The focus of the anti-missile system is to shoot down incoming missiles. Since missiles are mostly air strikes, air defense systems can also be used for anti-missile.