Here we are going to see a unique radar that has no analogues in the world.

Don-2N (Pill Box) is a stationary multi-functional radar with a phased-array antenna based in the Moscow region. The radar is a four-sided truncated pyramid which is 33 m high. Every side is 130 m long along the basis and 90 m long along the roof.

Ballistic missiles move as follows: they perform launch and boost, move along the ballistic trajectory and enter dense layers of atmosphere which is followed by target hitting.

It is easy to destroy a missile at the first stage. For this purpose satellites search for the missile following the infra-red radiation of incandescent gases breaking out from the jet pipe. Even a huge and non-protected missile becomes an easy target for

At the second stage a missile can be detected with the help of radars. The earlier it is detected the better it is as only 15 minutes are left before the target can be hit.

The screen of biological protection. The metal wall is higher than trees.

The place consists of many secret parts.

According to the agreement signed by the USSR and USA in 1970, every country had a right to protect from the missiles only one region.The USSR chose Moscow while the USA chose lands of the Northern Dakota with mines containing nuclear missiles.

Development of the ballistic missile defense system started in 1971. It was put into service in 1995. The system could hit heads of intercontinental ballistic missiles developing 6-7 km a second with counter-missiles supplied with nuclear warheads, etc.

Detection of a missile in the extra-atmospheric area was realized by considering the change of the target flight trajectory under the influence of nuclear explosion while light and heavy targets in the atmosphere were differentiated by way of their inhibi

The console controls a transporter that mounts and shifts blocks.

This is a control center where lots of restricted data are stored. The center controls equipment of the station. Here information about space and radio-electronic environment is processed and analyzed.

This Soviet monitor was not classified, so one could take photos of it when it was switched off.