Russia's S-400 Gets Better

S-400 Triumf / SA-21 Growler battery on the move (Russian MoD)
(Photo from Air Power Australia)

From Strategy Page:

December 31, 2008: Russia continues to develop and test new versions of its most powerful anti-aircraft missile, the S-400 (also known as the SA-20, Growler or Triumf). Particular attention is being paid to electronic countermeasures that the Americans might have, or be developing. Eighteen months ago, Russia put its first S-400a into service when a S-400 battalion (eight launchers, each with four missiles, plus a control center and radar) officially became operational outside Moscow. A second battalion was deployed in the same area this year.

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