Complex sentence: Kilcullen's paper "Twenty-Eight Articles" is a practical guide for junior officers and non-commissioned officers engaged in counter-insurgency operations in Afghanistan and Iraq, responding to T.E. Lawrence's "Twenty-Seven Articles" of how to begin and sustain an insurgency.
Split into simpler sentences: Kilcullen's paper "Twenty-Eight Articles" is a practical guide for junior officers and non-commissioned officers engaged in counter-insurgency operations in Afghanistan and Iraq. It is written as a response to T.E. Lawrence's "Twenty-Seven Articles" on how to begin and sustain an insurgency.