I know for a fact that Russia 'sold' one of its Galosh perimeter defence ABM missiles to the US so that they could derive some accelerated development from it. However the ABM missile the Russians sent over was a 'monkey model' since some of the more complex equipment had been removed, eg the mechanism to guide the kill vehicle to the terminal stage of the Ballistic projectile. So all we were stuck with was a nice booster stage rocket that was a Galosh, but lacked the real teeth of the actual missiles deployed around Moscow.
I know for a fact that Russia 'sold' one of its Galosh perimeter defence ABM missiles to the US so that they could derive some accelerated development from it. However the ABM missile the Russians sent over was a 'monkey model' since some of the more complex equipment had been removed, eg the mechanism to guide the kill vehicle to the terminal stage of the Ballistic projectile. So all we were stuck with was a nice booster stage rocket that was a Galosh, but lacked the real teeth of the actual missiles deployed around Moscow.No big deal... our "Safeguard" could have probably killed an ICBM 60 miles above the earth surface; we had the things loaded with a 400 kiloton nuclear warhead (the basic idea is, if you vaporize everything in a 2-3 miles radius, you're gonna hit the incoming bogie).
So, it ain't like we really needed Soviet "Galosh" technology, we were probably just wanting to compare notes and see how good the Russian version was.
Trouble is, the EM Pulse from the interceptor's warheads tends to blind their own radars. So, your system can't be 100% accurate against a MIRV attack; it degrades it's own targeting ability with each interceptor blast. Of course, since all nuclear blasts produce EM Pulse, Russia "Galosh" suffers from the same deficiency. But, I guess the Russkies figure a even a half-blind Ballistic Missile defense is better than none, so they kept the one around Moscow up and running.
Has Russia supplied any Galosh missiles to India? If she has not, up to now, maybe now is the time to do so?