Libya's General National Congress (GNC) deputy president Saleh al-Makhzoum (2ndR), the new national government head, Prime Minister, Fayez al-Sarraj (C) and the head of the Tobruk-based House of Representatives Mohammed Ali Shoeb (2ndL) celebrate after signing a deal on a unity government on December 17, 2015, in the Moroccan city of Skhirat. Rival Libyan politicians signed a deal on a unity government despite opposition on both sides, in what the United Nations described as a "first step" towards ending the crisis. / AFP / FADEL SENNA (Photo credit should read FADEL SENNA/AFP via Getty Images)