How would micro defense missile track incoming missile? I doubt most if not all of fighter sized aircraft have the 360 coverage to detect a missile never mention produce a fire solution. most of them would only have some RWS or thermal detector out of their front radar cone. Larger bombers and other specialist aircrafts except AWACS have even less situation awareness. So does this mean this concept is supposed to only work under support of AWACS (what's the normal detection range against A2A missile sized target again?) or it would require a new breed of aircraft with conformal antenna at every direction?
I remember there was the CUDA concept which was carried in F-35's weapon bay but that was only supposed to fire at targets in front of the jet because the limit of both radar coverage and weapon bay.