The author expresses gratitude to a network of friends, mentors, and colleagues who provided support during the writing of the book on U.S. Army doctrine. Special thanks are given to academic mentors Ted Wilson and Roger Spiller for their inspiration, as well as to reviewers Brian McAllister Linn, Roger Spiller, and Jonathan M. House for their constructive feedback. The author appreciates the efforts of the series editors and staff at the University Press of Kansas, particularly Michael Briggs and others involved in the publication process. Recognition is also extended to individuals who participated in oral histories and interviews, alongside colleagues from various institutions who contributed valuable insights. Finally, the author acknowledges the resources provided by Western Illinois University and the Society of Military History for supporting the research endeavors.