The backstory: When West 'tricked' Russia to overthrow Gaddafi's regime in Libya
The beginning of the end of Gaddafi's regime began at the UN security council, where Russia, the United States, Britain, France and China can each block a decision with a veto. However, the regime's fate in Tripoli was sealed with a trick. On March 17, 2011, with Gaddafi’s forces turning their guns on rebels in Benghazi, the council voted on Resolution 1973.
We haven't written up this one. Times of India has the full story — the link below goes straight to it.