Ambivalent
Junior Member
The current DF-21 has radar inside.
I can't imagine the SM-3 intercept the ASBM from behind. It would have to come from the front unlike air fighter scenario,which could be any angles.
SM-3 of course in nowhere near as fast as a ballistic missile. It's kill vehicle destroys the incoming ballistic missile by kinetic energy created by the collision of the kill vehicle and the incoming ballistic missile. There is no warhead as such on SM-3.
Now, SM-2 Block IV is being implemented to allow the in atmosphere intercept of ballistic missiles that leak through the layers of THAAD and SM-3.
A point so far missed is the heat of re-entry of a ballistic missile. If you study their busses, you will see they enter backwards like a Soyuz or Apollo capsule and have an ablative surface forming a curved heat shield to protect what is inside the buss. All ICBM's have this feature. The heat of the warhead entering the atmosphere creates a layer of plasma over the surface of the re-entry vehicle during which time any opening to the outside will allow the destruction of the warhead. Keep this detail in mind when positing all these wild ideas about warhead mounted mini-missiles and the like.
I also sense that few here have ever seen the inside of a missile or have any hands on familiarity with the difficulty of designing a missile and bringing it to fruition.