Cyrenaica (/saɪrᵻˈneɪ.ᵻkə/ SY-rə-NAY-ə-kə; Ancient Greek: Κυρηναϊκή Kyrēnaïkḗ, after the city of Cyrene; Arabic: برقة‎‎ Barqah;) is the eastern coastal region of Libya. Also known as Pentapolis in antiquity, it formed part of the Creta et Cyrenaica province during the Roman period, later divided into Libya Pentapolis and Libya Sicca. During the Islamic period, the area came to be known as Barqa, after the city of Barca. The 2011 Libyan Civil War started in Cyrenaica, which came largely under the control of the National Transitional Council (headquartered in Benghazi) for most of the war.