Zawiyah, located about 30 miles west of Tripoli along the coastline, is one of Libya鈥檚 largest cities and the closest one to the capital to have been held by rebels. Zawiyah holds one of the country鈥檚 major oil refineries and is situated near a set of oil fields. It鈥檚 also home to a major university.

Rich Clabaugh/Staff
Map of Libya.