5. Beijing defenses　/　北京防空

Beijing is the capital of China. The remains of two belts of HQ-2 sites (The new “Great wall”) left over from the cold war remain active:

北京是中国的首都。从冷战时期遗留下来的两条红旗2型发射阵地带（新的“长城”）还依然有效：

The defenses were modernized with S-300PMU SAMs in the 1990s.

到了上世纪90年代，北京的防空得到了S-300PMU的现代化加强。

Those were in turn partly replaced by the more capable S-300PMU-1s when they became available and now HQ-9 is also deployed.

红旗2型正在陆续被性能更好的S-300PMU-1型所取代，现在红旗9型也在部署之中。

Forgetting the old HQ-2s for a moment, the combined air-defense picture looks like this:

让我们暂时忘掉红旗2型系统，那么北京的综合防空势态图就是下面这个样子：（注：蓝色部分为“大鸟”雷达的覆盖范围）