The Responsibility to Protect (R2P) is a global political commitment adopted by UN member states in 2005 to prevent genocide, war crimes, ethnic cleansing, and crimes against humanity, emphasizing that sovereignty entails a responsibility to protect populations from such atrocities. It consists of three pillars: state protection responsibilities, international assistance and capacity-building, and timely and decisive response, with military intervention regarded as a last resort and authorized by the UN Security Council. R2P has generated extensive discussion regarding its implementation and is seen as a framework for both prevention and response to mass atrocity crimes.