I've found the following simple diagram (credit: Geoff Corn) useful:

Corn ROEs.jpg

In the Islamic take, the Dip/Pol Ring and the Law Ring will be influenced by the Koran, etc., to a greater or lesser extent.

In this particular diagram, the intersection of the three rings defines the acceptable ROEs (what is done in war). The same rings also come into play in defining the bounds of going to war in the first place.

One recognizes a bit of CvC's Triangle (Government, Military, People).

Regards

Mike