Planeman has written a fascinating article, “Bluffer’s guide: Fortress North Korea”, about North Korean AAA (Anti-Aircraft Artillery). It has has lots of 3D diagrams and google earth satellite photos. It is well worth reading.

AAA Coverage of Pyongyang

It is a classic example of how the internet enables the use unclassified information to create detailed reports on topics normally only accessible by intelligence personal.

Read it here.