RFI: In criticism of defense in depth

[selil]

I would consider insurgencies to be an outcome of a political problem rather than a doctrinal one (although it does present a series of unique doctrinal problems). Insurgency is related to war; while depth etc is related to warfare - subtly and profoundly different concepts (in my view, anyway). Regardless the more astute, knowledgeable and articulate members will hopefully shed more light on this matter than I can.

As to suggested further readings:

Ordering them all.