The bad news is that with the end of the Cold War, threats to international peace and security became less predictable and more diverse. The rise of international terrorism, the proliferation of weapons of mass destruction (WMD) and ballistic missiles, and the troubling actions of rogue states replaced the US-USSR superpower rivalry as the central organizing theme of the new national security environment. The idea of a 'peace dividend,' consisting of years of international tranquility and stability, were dashed on September 11, 2001. The threats of the Cold War were supplanted by new national security environment characterized by unpredictable, motivated, capable adversaries posing multiple threats. Peter Brookes, one of the most respected national security experts in the United States, reminds Americans that the world continues to be a very dangerous place, filled with people and groups eager to topple the United States. This devil's triangle-the intersection of terrorism, Chemical/Biological/ Radioactive/Nuclear weapons, and state sponsors-raises the timely question, What should America do about these new security challenges? America is at war and there is no other course but action. The United States can face these threats squarely and emerge victorious if we have the will and resolve to carry it through. Terrorism can be defeated. Proliferation can be curtailed. The behavior of rogue states can be modified. The United States is in an epic struggle in the defense of freedom and our way of life. A failure to identify, understand, and meet these security challenges head on could lead to an incident that would make the unspeakable horrors of 9/11 seem like a minor tragedy. With resolve, determination and a willingness to lead, America will successfully meet these challenges, and freedom will prevail.