Barnett's #4 (war in the context of "everything else") is straight outta Clausewitz.

Interesting to see how he differs from 1984[1]:

Oceania is split across Old Core, New Core, and Disconnected.

Eurasia is split across Old Core and New Core.

Eastasia is split across New Core and Disconnected.

Disputed territories are contained within Disconnected.

Guess I'll track his trichotomy to see if it has any better explanatory power.

[1] roughly (in our world I think Eastasia is smaller): https://en.wikipedia.org/wiki/Nations_of_Nineteen_Eighty-Fou...