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From the Harmon Memorial Lecture series website, here.

The Department of History, United States Air Force Academy, is the point of contact for the Superintendent's oldest and most prestigious lecture series at the United States Air Force Academy. The purpose is twofold: to promote a greater knowledge of military history in the United States and abroad, and to stimulate a lifelong interest among cadets in their professional subject.

Each year a committee of internationally known historians and Academy representatives select an outstanding military historian, or a first-rate scholar from a closely related field, who is invited to present a lecture on a subject of his or her choice within broadly construed field of military history. In keeping with the purpose of the series, the lecture is published and distributed to leading scholars and libraries throughout the world.

These lectures are known collectively as the "Harmon Memorial Lectures in Military History," in memory of the accomplishments of the late Lieutenant General Hubert R. Harmon, the first Superintendent of the Academy. General Harmon's lifelong personal interest in military history makes it particularly appropriate that he be honored in this way.

A PDF version of The Harmon Memorial Lectures in Military History, 1959-1987: A Collection of the First Thirty Harmon Lectures Given at the United States Air Force Academy ed., Lieutenant Colonel Harry R. Borowski (Washington, D.C.: Office Of Air Force History United States Air Force Washington, D.C., 1988) is available here.