September 11, 2001: The New Face of War? was written to help students understand the issues surrounding the September 11th terrorist attacks on New York City and Washington, D.C., and to provide direction for classroom discussion. Written by Dr. Donald Snow, a national security scholar and consultant to the U.S. military, this 40 page case study provides instructors and students with a balanced, reliable, and scholarly resource about the tragedy. The first part of the booklet examines the nature and characteristic of terrorism as they have evolved and as we understood them before the September 11 attacks. In the second part, Snow looks specifically at the events surrounding the attacks, to understand better what occurred, to see how September 11 does or does not exemplify the general phenomenon of terrorism, and to assess how the attacks may have extended how we need to think about terrorism in the future.