"This monograph provides a brief examination of: 1) the relatively recent evolution of international conventions and declarations that contribute directly to the contemporary diplomatic-legal definition of security; 2) salient scholarly thinking relating to political-diplomatic-legal principles that have become integral parts of the United Nations (and various other international efforts to confront threats to citizen and collective security and human well-being); and, 3) selected post-Cold War military responses to hegemonic non-state actors. The security dilemma, then, is more than a question of determining what aggression is and what aggression is not. Rather, it is now a question of: Why, when, and how to intervene to protect people and prevent egregious human suffering. This question, in turn, encompasses more than a redefinition of security. It is nothing less than a redefinition of sovereignty. Sovereignty was, in the past, the control of territory and the people in it. Sovereignty is now the responsibility to protect peoples' well-being in a given territory."
Army War College (U.S.). Center for Strategic Leadership: http://www.csl.army.mil/