I don't think it can be argued that what we are doing is the study of conflict (this sentence is true on many levels and gets funnier the more levels you go up).
Is it proper to limit one's study simply to the interpersonal conflict at the physical level, or is it proper to expand one's study to the interpersonal conflict at the verbal level?
Should we expand, as well, up to the generally social level, and examine conflict between groups of people? Should our studies examine the arts of diplomacy and politics? Is it necessary to understand the interplay between diplomacy/politics (verbal) and war (physical)?
-- the title of the question is a hard-to-translate quote from Clausewitz.