 Complete the following phrase:  On 17 March, United Nations Security Council Resolution 1973 was adopted, authorising a no-fly zone over Libya, and all necessary measures to protect civilians. Two days later, France, the United States and the United Kingdom intervened in Libya with a bombing campaign against pro-Gaddafi forces. A coalition of 27 states from Europe and the Middle East soon joined the intervention. The forces were driven back from the outskirts of Benghazi, and the rebels 