The Libyan Civil War began on 17 February 2011 as a civil protest and later evolved into a widespread uprising. After a military intervention led by France, the United Kingdom, and the United States (and later NATO) on 19 March turned the tide of the conflict at the Second Battle of Benghazi, anti-Gaddafi forces regrouped and established control over Misrata and most of the Nafusa Mountains in Tripolitania and much of the eastern region of Cyrenaica. In mid-May, they finally broke an extended siege of Misrata.