Robert Schulzinger is professor of history at the University of Colorado, Boulder. He received his Ph.D from Yale University in 1971. His areas of expertise are American diplomatic and recent U.S. history. His many publications include A Time for War: The United States and Vietnam (1977), American Diplomacy in the Twentieth Century (1994), and Henry Kissinger: Doctor of Diplomacy (1993). He currently serves as the director of the International Affairs Program at the University of Colorado.