20th century (1927-1997) · Military Strategy / Leadership
John Boyd was a U.S. Air Force fighter pilot and military strategist whose theories on conflict, decision-making, and organizational adaptation revolutionized modern military thought. He developed the OODA Loop (Observe, Orient, Decide, Act) and the concept of 'maneuver warfare,' influencing doctrine from the Marine Corps to business strategy. Despite his profound impact, he remained a contentious, behind-the-scenes figure known as the 'Ghetto Colonel' for his relentless, unpaid work.