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Opening the Loop

A look inside the mind of John Boyd

By Maj Ian T Brown Many Marines are familiar with the name of John Boyd. Most associate Boyd with the “OODA loop,” (observation, orientation, decision, action) a decision-making cycle that was born from air-to-air combat tactics. It later spread as an analytical tool for all levels of war, making its way into the business world

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A Manœuvre Renaissance

Overcoming the attritionist tendency

By Capt Daniel R Grazier An eccentric retired Air Force colonel accepted an invitation to speak to the students of Amphibious Warfare School class of 1979 only after the staff grudgingly agreed to his demand for a five-hour block of time.1 From this slightly awkward beginning, the Marine Corps’ doctrine of manœuvre warfare sprouted and

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