Libyans gather during a celebration at Martyrs' Square (known as Green Square under Gaddafi's regime), in Tripoli, Libya, Aug. 20, 2012. Anti-Gaddafi forces entered Tripoli's central Green Square, after hours of heavy fighting with Gaddafi's forces, on Aug. 21, 2011. (Xinhua/Hamza Turkia)

Libyans gather during a celebration at Martyrs' Square (known as Green Square under Gaddafi's regime), in Tripoli, Libya, Aug. 20, 2012. Anti-Gaddafi forces entered Tripoli's central Green Square, after hours of heavy fighting with Gaddafi's forces, on Aug. 21, 2011. (Xinhua/Hamza Turkia)

Libyans gather during a celebration at Martyrs' Square (known as Green Square under Gaddafi's regime), in Tripoli, Libya, Aug. 20, 2012. Anti-Gaddafi forces entered Tripoli's central Green Square, after hours of heavy fighting with Gaddafi's forces, on Aug. 21, 2011. (Xinhua/Hamza Turkia)