NATO provides the UN with an effective joint military capability  When in early 2011 the United Nations Security Council adopted Resolution 1973, calling upon countries and regional organizations to take “all necessary measures” to protect the citizens of Libya against its dictator Ghaddafi, NATO provided effective support through their ‘Operation Unified Protector’, through which it enforced the arms embargo against Ghaddafi and the no-fly zone over Libya. Moreover, the smooth cooperation between France, the UK and the US in their active campaign to provide air support for the rebels in Libya has probably been made easier by the previous cooperation these countries have had through NATO.