Beijing Air Defense.The remains of two belts of HQ-2 sites (The new “Great wall”) left over from the cold war remain active.The defenses were modernized with S-300PMU SAMs in the 1990s. Beijing Air Defense.The remains of two belts of HQ-2 sites (The new “Great wall”) left over from the cold war remain active.The defenses were modernized with S-300PMU SAMs in the 1990s.
They look pretty worried about some one to their north west... and not so worried about the east. Interesting.