In the Media

Selected Lectures

Wyoming Governors Business Forum Speech

I gave the keynote address on the 1863 Pennsylvania Campaign and its modern business applications at the 40th annual Wyoming Governor's Business Forum in Laramie, Wyoming, in November 2023.

Second Friday Lecture: German-American Soldiers in the Civil War: A Military and Social Overview

A lecture I delivered on July 6, 2021, for the Kenosha Civil War Museum, about the military, political, and ethnic experiences of German-American soldiers in the Civil War.

History Talk- “Robert E. Lee, Stonewall Jackson, and the Confederate Strategy in the East 1862-1863”

A lecture delivered on the main points elaborated in The Great Partnership during the new Museum of the U.S. Army’s inaugural “Civil War Week” conference, May 13, 2021.

The Great Partnership: Robert E. Lee, Stonewall Jackson, and the Fate of the Confederacy

A lecture about my book delivered at the U.S. National Archives, Washington, DC, on August 6, 2019. (Note: viewers should start the video at the 5-minute mark).

The Partnership That Almost Won the Civil War: Lee, Jackson, and Confederate Strategy In the East.

A “Perspectives in Military History” series lecture focusing on the strategic significance of the Lee-Jackson relationship, delivered at USAHEC, Carlisle, PA on April 17, 2020.

Robert E. Lee, Great Captain

Remembering Robert E. Lee Lecture October 2014, Washington and Lee University.

Flying Dutchmen and Drunken Irishmen: The Myths and Realities of Ethnic Civil War Soldiers

Perspectives in Military History Lecture, 2013, United States Army Heritage and Education Center (USAHEC), April 18, 2013.

Christian Keller – Germans and the Civil War

A recording made by one of my Civil War Institute students in June 2013 of a small-group lesson I delivered on German-Americans in the Civil War.

Military Lessons from the Civil War

Military Lessons from the Civil War

C-SPAN video of a panel I chaired at Gettysburg College’s famous Civil War Institute on June 19, 2016, about the military lessons from the Civil War as interpreted by the U.S. Army in the postwar years and early 20th century. (Note: Viewers should start at 6:15 mark and stop at 27:15)


Selected Podcasts, Interviews and Appearances

He discusses the Ways, Means, and Ends Paradigm and how we can apply this decision-making process to business

Podcast with the Wyoming Business Alliance's "Business From the Basement" podcast series on the take-aways for business leaders from classical strategic theory.

Watch Here
Generals Lee and Grant: Great Strategists of the American Civil War

Podcast with RUSI's "Talking Strategy" Podcast series on the strategic leadership and command of generals Lee and Grant

Watch Here
The Great Duo Revisited: Robert E. Lee and Stonewall Jackson

A podcast recording of my lecture, "The Great Duo Revisited: Robert E. Lee and Stonewall Jackson," the keynote address at the Gettysburg College Civil War Institute, June 2023.

Watch Here
Stonewall's mapmaker: How Jed Hotchkiss mapped out the Gettysburg Campaign

TV interview with David Tristan of Harrisburg’s ABC 27 News about Stonewall Jackson’s mapmaker, Jedediah Hotchkiss, and his detailed map of south-central Pennsylvania, created in anticipation of the Confederate invasion that actually occurred in the summer of 1863. First aired July 1, 2021.

Watch Here
Army War College students study history where it happened

TV interview with David Tristan of Harrisburg’s ABC 27 News about the Antietam Campaign, Lee’s intent in moving north in the fall of 1862, and Army War College staff rides. First aired May 20, 2021.

Watch Here
Military Lessons from the Civil War

C-SPAN video of a panel I chaired at Gettysburg College’s famous Civil War Institute on June 19, 2016, about the military lessons from the Civil War as interpreted by the U.S. Army in the postwar years and early 20th century. (Note: Viewers should start at 6:15 mark and stop at 27:15)

Watch Here
Radio Interview with Gerry Prokopowicz, host of CIVIL WAR TALK RADIO

Radio Interview with Gerry Prokopowicz, host of CIVIL WAR TALK RADIO, about The Great Partnership. First aired January 29, 2020. (Note: listeners should start at the beginning of the interview and stop at 1:23, resuming again at the 10-minute mark for the historical discussion).

Listen Here
Radio Interview with Bradley Jay on Boston WBZ1030

Radio Interview with Bradley Jay on Boston WBZ1030, about The Great Partnership: Robert E. Lee, Stonewall Jackson, and the Fate of the Confederacy. First aired June 11, 2019. (Note: listeners should stop at the 42 minute mark, when the interview concludes).

Listen Here
A BETTER PEACE presents "Reliving the Civil War Through Battlefield Staff Rides,"

A BETTER PEACE presents "Reliving the Civil War Through Battlefield Staff Rides," Christian Keller and Jacqueline E. Whitt. They also discuss the best way to approach visiting a Civil War battlefield to get the most out of the experience -- preparing for the visit through reading and study; walking the ground; and post-visit reflection.

Listen Here
A BETTER PEACE Great Captains series

A BETTER PEACE continues its Great Captains series with a look at the strategic team of Generals Robert E. Lee and Thomas "Stonewall" Jackson. Lee was a great strategic thinker at all levels of war; Jackson proved to be an exceptional field commander and strategic advisor to Lee. Each independently earned consideration of the title of Great Captain, their symbiotic relationship proved very powerful until Jackson's death. Presenting this story is U.S. Army War College Professor of History Christian Keller, moderated by A BETTER PEACE Editor Jacqueline E. Whitt.

Listen Here
PCN PA BOOKS series podcast interview

PCN PA BOOKS series podcast interview regarding Pennsylvania: A Military History with co-authors Dr. Christian Keller and Dr. Barbara Gannon. First aired July 11, 2017.

Listen Here
Radio Interview with Gerry Prokopowicz, host of CIVIL WAR TALK RADIO

Radio Interview with Gerry Prokopowicz, host of CIVIL WAR TALK RADIO, about Chancellorsville and the Germans. First aired November 20, 2009. (Note: listeners should start at the 5:00 minute mark for the beginning of the interview and at the 15 minute mark for the historical discussion.)

Listen Here

Written Interviews and Commentary

The Great Partnership Book Cover

Blogpost on the University Press of Kansas’s blog page about the Confederacy’s military leadership problem and why knowing that matters today.

Read Here
The Great Partnership Book Cover

Interview about The Great Partnership with Katie Thompson of Civil Discourse: A Blog of the Long Civil War Era.

Read Here
Sherman’s March to the Sea: A military triumph left a bitter legacy

Washington Post article in which I’m interviewed about General William T. Sherman and the “hard war” policy he manifested in Georgia and the Carolinas in 1864-1865. Published on September 11, 2014.

Read Here