This episode of History As It Happens was recorded on location at the U.S. Army War College and the Army Heritage and Education Center in Carlisle, Pa. The Army's 250th birthday was on June 14th.

What happens inside a classroom full of colonels and lieutenant colonels? At this institution in rural Pennsylvania, America's future military leaders are learning grand strategy steeped in history, from Thucydides to today's conflicts. In this episode, historians Kate Lemay and Michael Neiberg discuss the way their students are challenged to think about preserving the peace, and how the center's archive brings the past to life.

Episode artwork by Kaitlin Garman, Education Technician (Outreach), U.S. Army Heritage and Education Center