Since the end of World War II, the phrase "never again" has been ingrained in our collective memory as a promise that the atrocities of the Holocaust will never be repeated. The world has learned an unforgettable lesson about the importance of protecting human rights in the face of aggression. The United Nations was later created with a commitment to fulfill this promise to humanity. On 17 March 2011, the UN's role as a peacekeeper was put to the test when Resolution 1973 was adopted authorizing military intervention in Libya in an effort to protect civilians from impending mass atrocities perpetrated by former president Muammar Gaddafi . There is still division over justification. of this resolution, as well as the debate on the success of the intervention. Some consider it a good model to follow, while others argue that there was not enough “just cause” to intervene. Despite the lack of consensus, it is certain that this military operation, morally justified by the protection of human rights, constituted a very important precedent for future humanitarian interventions. This article offers a brief overview of the history of humanitarian interventions led by the United Nations, in particular the formation and adoption of the notion of “responsibility to protect” (R2P). It then uses the 2011 intervention in Libya as a case study to examine the adoption, implementation, legitimacy, and legality of R2P. Finally, it explores the impact that the Libyan intervention will have on the future of UN humanitarian interventions. Humanitarian Intervention and the Responsibility to Protect Since its creation in 1945, under the United Nations Charter, the United Nations Security Council is a committee of states charged with maintaining a number of peacekeeping missions: ... half of the document ... serious about protecting civilian lives only, he would use his power to influence the rebels at least into considering the regime's peace offer. Future Consequences of InterventionSince the 2011 humanitarian intervention, Libya The most recent dispute centers on the best steps to take in Syria, which is very similar in nature to the 2011 conflict in Libya. The United Nations Security Council has failed to reach consensus on measures to stop violence against civilians in Syria after more than three years of civil war that have resulted in numerous human rights violations, just as experts are unwilling to reach a consensus on when and how to conduct humanitarian interventions. It is easy to agree that all people deserve life, liberty and security, although in the event of a threat the question of when and how to intervene is not easily answered.