Dennis Showalter is a professor of history at Colorado College specializing in military history. From 1997 to 2001 he was president of the American Society for Military History from 1997 to 2001 and is currently an advising fellow of the Barsanti Military History Center at the University of North Texas. Showalter has previously taught at the United States Air Force Academy, the United States Military Academy, and the Marine Corps University. He has written extensively on the wars of Frederick the Great, the German Wars of Unification, World War I, and World War II.