Russian Air Defense Network KMZ

This is an image taken from Google Earth that maps Russian air defense installations, along with showing their six military zones. Some of the sites date back to the Cold War and are now inactive, but the heavy concentrations near Poland, Moscow, and the Black Sea are particularly evident.  The .kmz file was obtained from a military analysis blog at http://geimint.blogspot.com/2008/12/russian-strategic-air-defense.html