This volume is a collection of the key writings of Professor Ramesh Thakur on norms and laws regulating the international use of force. The adoption of the Responsibility to Protect (R2P) principle by world leaders assembled at the UN summit in 2005 is widely acknowledged to represent one of the great normative advances in international politics since 1945. The author has been involved in this shift from the dominant norm of non-intervention to R2P as an actor, public intellectual and academic and has been a key thinker in this process. These essays represent the author's writings on R2P, including reference to test cases as they arose, such as with Cyclone Nargis in Myanmar in 2008. Comprising essays by a key thinker and agent in the Responsibility to Protect debates, this book will be of much interest to students of international politics, human rights, international law, war and conflict studies, international security and IR in general.