As a retired Navy Captain, Dr. John Cordle knew the impact of fatigue management on force readiness. Following his retirement, Dr. Cordle completed his Doctorate of Engineering in Human Systems Engineering and rededicated himself to serving the Navy as a Human Factors Engineer. As a civilian employee, Dr. Cordle set out to identify signs of stress and fatigue and built systems to prevent future collisions at sea. In May 2025, Dr. Cordle left government service after finding that his moral compass no longer aligned with that of the current administration.
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To learn more about Dr. Cordle's experience and his former job, check out his recent CIMSEC article.
https://cimsec.org/dont-forget-the-lessons-of-the-2017-comprehensive-review/
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Read Dr. Cordle's op-ed in the Navy Times about why he chose to retire from government service.
https://www.navytimes.com/opinion/2025/06/18/why-i-left-government-service-my-moral-compass-no-longer-aligned/
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If you enjoy Dr. Cordle's writing, consider subscribing to his Substack.
https://substack.com/@johncordle573317
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Connect with Dr. Cordle on LinkedIn.
https://www.linkedin.com/in/cordlejp
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"Going Circadian: The United States Navy's Slow Road to Change" by Dr. John Cordle
https://www.amazon.com/Going-Circadian-United-States-Change/dp/B08924C38G
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"Oscar P. Dog: A Deployment Story and Guidebook for Military Kids 6-12" by Dr. John Cordle
https://www.amazon.com/Oscar-P-Dog-Deployment-Guidebook/dp/B088BGLGDS
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"Black Officer, White Navy: A Memoir" by Keith Green
https://www.kentuckypress.com/9781985900295/black-officer-white-navy/
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Watch out for John's next book coming out later this year, titled "Letters to Myself" from StoneTower Press
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