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Dennis H. Mahan
Jomini on the Nature of War – Part VII – Jomini's Impact on Civil War Leadership
On April 2, 2008
This post continues the series of “Jomini on the Nature of War.” Part I: Introduction is available here, Part II: The Burgeoning Military Theorist here, Part III: The Founder of Modern Strategy here, Part IV: The Basics here, Part V: Lines of Operation here, and Part VI – The Conduct of War here.
Returning to Baron Antoine de Jomini (right), I wanted to explore the extent to which his strategies influenced those who held leadership positions during the American Civil War. A modest survey of the literature revealed some disagreement.
Historian James L. Morrison, Jr. in his article “Educating the Civil War Generals: West Point, 1833 - 1861,″ pointed out that exposure to Jomini came during “Professor Dennis H. Mahan’s [pictured below] course, Civil and Military Engineering and the Science of War which all First Classmen studied daily.”[i]
Dennis H. Mahan
Photo Credit: Wiki Commons
But only nine hours were given to the study of the science of war and Morrison contends that this was entirely too brief an exposure to have had any lasting impact. That said, he acknowledges that some alumni of the military academy studied Jomini thoroughly including Beauregard, Lee, Halleck, and McClellan.
“…The same cannot be said for the great majority of their colleagues who had neither the opportunity nor the inclination to continue their strategic studies after graduation. Probably Sherman was more representative of the typical graduate when he denied that Jomini had affected his thoughts or actions in the war.” [ii]
I’ll discuss some additional viewpoints in the next post.
A word on Dennis H. Mahan. A military theorist in his own right, Mahan was instrumental in developing the engineering-focused curriculum at West Point. Some may recall that he was the father of naval strategist Admiral Alfred Thayer Mahan. The elder’s obituary, which appeared on September 17, 1871 in New York Times here, reveals that Professor Mahan committed suicide by jumping in the Hudson River from the deck of the steamboat Mary Powell in such a way that he was hit by the wheel. He was apparently despondant about being forced to retire. A sad end to a remarkable career. Professor Mahan’s memoir is available online here.
Mary Powell, Queen of the HudsonPhoto Credit: Hudson River Maritime Museum
[i, ii] James L. Morrison, Jr., “Educating the Civil War Generals: West Point, 1833 – 1861,” Military Affairs, Vol. 38, No. 3. (Oct., 1974), pp. 109.
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