Defining War by Jeffrey Hasler, Special Warfare. BLUF:
"Regular review and restatement of approved definitions and their descriptions are necessary as sources of doctrine (e.g., policy, concepts, lessons learned, training, military education, operations planning and strategy) naturally evolve and doctrine is routinely updated. However, further complicating the goal of establishing and reinforcing up-to-date, authoritative and clearly articulated doctrine are other, currently influential, nondoctrinal terms. Incorrect usage of doctrinal terms sows confusion and hinders mission accomplishment; incorrect usage of unapproved terms does so exponentially."
Defining War, Special Warfare.