People gather to enjoy the fireworks during a celebration for the second anniversary of the Libyan uprising at the Martyrs' Square in Tripoli on Feb. 17, 2013. (Xinhua/Hamza Turkia)

People gather to enjoy the fireworks during a celebration for the second anniversary of the Libyan uprising at the Martyrs' Square in Tripoli on Feb. 17, 2013. (Xinhua/Hamza Turkia)

 People gather to enjoy the fireworks during a celebration for the second anniversary of the Libyan uprising at the Martyrs' Square in Tripoli on Feb. 17, 2013. (Xinhua/Hamza Turkia)