A look back at wartime moral dilemmas confronting America’s “greatest generation” – dropping atomic bombs, interning Japanese-Americans, whether to starve Axis populations – all raise questions concerning how present-day leaders will confront crises. Zachary Shore, a Hoover Institution national security fellow and Naval Postgraduate School professor, discusses lessons learned from World War II and the fine art of understanding enemies especially when dealing with the likes of Vladimir Putin and Xi Jinping.