“The horrific mass atrocities of recent decades have increased the pressure from citizens and policymakers alike to make confronting such killing sprees a foreign policy priority for the United States and like-minded nations. This idea is bolstered by the emergence of the principle of the responsibility to protect (R2P) in international action. Recently this principle was put into practice via Security Council resolution 1973, which authorized the enforcement of a no-fly zone to protect endangered civilians in Libya in March 2011.”